glupteba | bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 21:01

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General

Target

JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
Size

4.3MB
MD5

78683b28bb86d1aa7aa7bdd1a36c6d3c
SHA1

d4eb73fa2a93287eea730eb09e389fa19dcd6f3e
SHA256

bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4
SHA512

4e55c8e4a02758924fac8473ada398879d80e62938ea9765b74237d2d4dbd435329b8de9f23e7caa907283bde5f2e5a962a63420c83d8179ef0e8820752aba02
SSDEEP

98304:sM1paJhwe38sbmpvEXqPRB+CEl0sYLrvpeR5OGkd4E6FO:sWpAh38rMag0rvw5OGkdF

Score

10^/10

glupteba metasploit backdoor discovery dropper evasion loader persistence privilege_escalation rootkit trojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

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

Glupteba payload 19 IoCs

resource	yara_rule
behavioral2/memory/3924-2-0x0000000005340000-0x0000000005BE2000-memory.dmp	family_glupteba
behavioral2/memory/3924-3-0x0000000000400000-0x0000000000CBD000-memory.dmp	family_glupteba
behavioral2/memory/3924-4-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/3924-6-0x0000000000400000-0x0000000000CBD000-memory.dmp	family_glupteba
behavioral2/memory/3924-5-0x0000000005340000-0x0000000005BE2000-memory.dmp	family_glupteba
behavioral2/memory/4264-12-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-14-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-20-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-21-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-22-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-23-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-24-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-25-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-26-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-27-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-28-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-29-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-30-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba
behavioral2/memory/2264-31-0x0000000000400000-0x0000000002F41000-memory.dmp	family_glupteba

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5016	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2264	csrss.exe
852	injector.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FragrantWave = "\"C:\\Windows\\rss\\csrss.exe\""	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.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 2 IoCs

Web Service

T1102

flow	ioc
51	raw.githubusercontent.com
50	raw.githubusercontent.com

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

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

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1804	4264	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	csrss.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3924	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
3924	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
2264	csrss.exe
2264	csrss.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe
852	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
Token: SeImpersonatePrivilege	3924	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
Token: SeSystemEnvironmentPrivilege	2264	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 4908	4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe	89
PID 4264 wrote to memory of 4908	4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe	89
PID 4908 wrote to memory of 5016	4908	cmd.exe	91
PID 4908 wrote to memory of 5016	4908	cmd.exe	91
PID 4264 wrote to memory of 2264	4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe	92
PID 4264 wrote to memory of 2264	4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe	92
PID 4264 wrote to memory of 2264	4264	JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe	92
PID 2264 wrote to memory of 852	2264	csrss.exe	112
PID 2264 wrote to memory of 852	2264	csrss.exe	112

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\JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3924
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4.exe"
  2⤵
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4264
- - 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:4908
  - - 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
      Event Triggered Execution: Netsh Helper DLL
      PID:5016
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe /301-301
    3⤵
    - Executes dropped EXE
    - Manipulates WinMonFS driver.
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2264
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3788
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:5072
  - - 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:852
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4264 -s 728
    3⤵
    - Program crash
    PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4264 -ip 4264
1⤵
PID:4356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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
4.3MB

MD5
78683b28bb86d1aa7aa7bdd1a36c6d3c

SHA1
d4eb73fa2a93287eea730eb09e389fa19dcd6f3e

SHA256
bf1e86036e120f8db116273f5b3ad362dff807ed896dbb7a066047d3203325f4

SHA512
4e55c8e4a02758924fac8473ada398879d80e62938ea9765b74237d2d4dbd435329b8de9f23e7caa907283bde5f2e5a962a63420c83d8179ef0e8820752aba02

Download Submit
memory/2264-25-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-26-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-31-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-30-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-29-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-28-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-14-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-27-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-20-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-21-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-22-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-23-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/2264-24-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/3924-1-0x0000000004F20000-0x000000000533A000-memory.dmp

Filesize
4.1MB

Download
memory/3924-4-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download
memory/3924-2-0x0000000005340000-0x0000000005BE2000-memory.dmp

Filesize
8.6MB

Download
memory/3924-3-0x0000000000400000-0x0000000000CBD000-memory.dmp

Filesize
8.7MB

Download
memory/3924-5-0x0000000005340000-0x0000000005BE2000-memory.dmp

Filesize
8.6MB

Download
memory/3924-6-0x0000000000400000-0x0000000000CBD000-memory.dmp

Filesize
8.7MB

Download
memory/4264-12-0x0000000000400000-0x0000000002F41000-memory.dmp

Filesize
43.3MB

Download