glupteba | ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11

General

Target

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Size

4.1MB
MD5

4c4a5b8978c533a925251ab02b6588ed
SHA1

464ee64ad8547d7da2825302b2110469cfc99add
SHA256

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11
SHA512

3089eb52f492c8f9bf6cd802f3d0fe35c9bd9cb987ce2316d6ea7ecae8222e8fe1be71a3e7f5a2c3394500ffa6d65a0808ac3671d8d79b22c1273a87fad6a50d
SSDEEP

98304:2ojG5wSVpA06RFL0CxbWXYdsOzVuQDRCp3gQG6pq+k5FuI+:7SUHW0HBCZgm7Ov+

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 18 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3180-134-0x0000000004F60000-0x00000000057D7000-memory.dmp	family_glupteba
behavioral1/memory/3180-135-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3180-136-0x0000000004F60000-0x00000000057D7000-memory.dmp	family_glupteba
behavioral1/memory/4404-142-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-149-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-150-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-151-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-152-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-153-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-154-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-155-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-156-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-157-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-158-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-159-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-160-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-161-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba
behavioral1/memory/3744-162-0x0000000000400000-0x0000000002F48000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2680 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

3744 csrss.exe
5088 injector.exe
2968 f801950a962ddba14caaa44bf084b55c.exe

pid	process
2680	netsh.exe

pid	process
3744	csrss.exe
5088	injector.exe
2968	f801950a962ddba14caaa44bf084b55c.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
rootkit evasion

Processes:

csrss.exe

description ioc process

File opened for modification \??\WinMonFS csrss.exe
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery
T1082

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

description	ioc	process
File opened for modification	\??\WinMonFS	csrss.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

Drops file in Windows directory 2 IoCs

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

description	ioc	process
File opened for modification	C:\Windows\rss	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
File created	C:\Windows\rss\csrss.exe	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4188 4404 WerFault.exe ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

4648 schtasks.exe
4940 schtasks.exe

pid	pid_target	process	target process
4188	4404	WerFault.exe	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

pid	process
4648	schtasks.exe
4940	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.execeeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exeinjector.execsrss.exe

pid	process
3180	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
3180	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
3744	csrss.exe
3744	csrss.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
3744	csrss.exe
3744	csrss.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe
5088	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3180	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Token: SeImpersonatePrivilege	3180	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
Token: SeSystemEnvironmentPrivilege	3744	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.execmd.execsrss.exe

description	pid	process	target process
PID 4404 wrote to memory of 3828	4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe	cmd.exe
PID 4404 wrote to memory of 3828	4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe	cmd.exe
PID 3828 wrote to memory of 2680	3828	cmd.exe	netsh.exe
PID 3828 wrote to memory of 2680	3828	cmd.exe	netsh.exe
PID 4404 wrote to memory of 3744	4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe	csrss.exe
PID 4404 wrote to memory of 3744	4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe	csrss.exe
PID 4404 wrote to memory of 3744	4404	ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe	csrss.exe
PID 3744 wrote to memory of 5088	3744	csrss.exe	injector.exe
PID 3744 wrote to memory of 5088	3744	csrss.exe	injector.exe
PID 3744 wrote to memory of 2968	3744	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 3744 wrote to memory of 2968	3744	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 3744 wrote to memory of 2968	3744	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
"C:\Users\Admin\AppData\Local\Temp\ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3180

C:\Users\Admin\AppData\Local\Temp\ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe
"C:\Users\Admin\AppData\Local\Temp\ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11.exe"
2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4404

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
3⤵
- Suspicious use of WriteProcessMemory
PID:3828

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
4⤵
- Modifies Windows Firewall
PID:2680

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
4⤵
- Creates scheduled task(s)
PID:4648

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:752

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:5088

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
4⤵
- Creates scheduled task(s)
PID:4940

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:2968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 792
3⤵
- Program crash
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4404 -ip 4404
1⤵
PID:3956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
1.6MB

MD5
ac800cf56cc3b56f39f07a9803e04b3f

SHA1
a3f7175c16da53ff020f0f62bcdcf612516fea44

SHA256
77fa8baf8a071e42ff82c9477b58029f5bfbe390aae123944e028127b852e924

SHA512
beb1bdc486941725d0d369f45b95dcfeb649a382d559a8e85bafafb0336a571c57a658471bbcf8d3af27621282c5fe1ce31d82ab4e6c0bb64ef1434884c1c618

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
4c4a5b8978c533a925251ab02b6588ed

SHA1
464ee64ad8547d7da2825302b2110469cfc99add

SHA256
ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11

SHA512
3089eb52f492c8f9bf6cd802f3d0fe35c9bd9cb987ce2316d6ea7ecae8222e8fe1be71a3e7f5a2c3394500ffa6d65a0808ac3671d8d79b22c1273a87fad6a50d

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
4c4a5b8978c533a925251ab02b6588ed

SHA1
464ee64ad8547d7da2825302b2110469cfc99add

SHA256
ceeb91c4ca662c85b3f1aa255920a57098245a80da01c73acf4b985bd5c6cc11

SHA512
3089eb52f492c8f9bf6cd802f3d0fe35c9bd9cb987ce2316d6ea7ecae8222e8fe1be71a3e7f5a2c3394500ffa6d65a0808ac3671d8d79b22c1273a87fad6a50d

Download Submit
memory/3180-134-0x0000000004F60000-0x00000000057D7000-memory.dmp

Filesize
8.5MB

Download
memory/3180-135-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3180-136-0x0000000004F60000-0x00000000057D7000-memory.dmp

Filesize
8.5MB

Download
memory/3744-153-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-157-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-152-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-150-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-154-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-155-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-156-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-151-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-158-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-159-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-160-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-161-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-162-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/3744-149-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download
memory/4404-142-0x0000000000400000-0x0000000002F48000-memory.dmp

Filesize
43.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads