smokeloader | f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2022 03:56

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General

Target

f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
Size

255KB
MD5

c1863a86cdeb57ba02ffccca4e499a73
SHA1

f1b10500deb59330b74a3bd236d2e7a2e4cefa72
SHA256

f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7
SHA512

2824e4c13b0d81835812523ec94a2ab7f44d9bc51ac7bf7e09dfe008876d475989a71c0bdf2bbb2d65f131a9b7df7490357af1713164a6748f7ef71b2a259ad4
SSDEEP

3072:qXKpCMLycLTjC/Nge5hk+mRGzMCTSK4pW2CjlD9dkKU9jU+HgEDJg2M4k:KHML1La6e5hk+twEUTOhdVU4mJD+2K

Score

10^/10

smokeloader vidar 937 backdoor discovery spyware stealer trojan

Malware Config

Extracted

Family

vidar

Version

55.2

Botnet

937

https://t.me/slivetalks

https://c.im/@xinibin420

Attributes

profile_id
937

Signatures

Detects Smokeloader packer 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3976-133-0x00000000001F0000-0x00000000001F9000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Drops file in Drivers directory 1 IoCs

Processes:

cmd.exe

description ioc process

File opened for modification C:\Windows\System32\drivers\etc\hosts cmd.exe
Executes dropped EXE 3 IoCs

Processes:

C459.exe74642133471418249937.exeCert.exe

pid process

2756 C459.exe
4680 74642133471418249937.exe
4640 Cert.exe

description	ioc	process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	cmd.exe

pid	process
2756	C459.exe
4680	74642133471418249937.exe
4640	Cert.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

C459.exe74642133471418249937.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	C459.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	74642133471418249937.exe

Loads dropped DLL 3 IoCs

Processes:

C459.exe

pid process

2756 C459.exe
2756 C459.exe
2756 C459.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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
Drops file in Program Files directory 1 IoCs

Processes:

Cert.exe

description ioc process

File created C:\Program Files\Google\Chrome\Application\chrome.exe Cert.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2244 2756 WerFault.exe C459.exe

pid	process
2756	C459.exe
2756	C459.exe
2756	C459.exe

description	ioc	process
File created	C:\Program Files\Google\Chrome\Application\chrome.exe	Cert.exe

pid	pid_target	process	target process
2244	2756	WerFault.exe	C459.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

C459.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	C459.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	C459.exe

Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

3104 timeout.exe
3060 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4892 taskkill.exe

pid	process
3104	timeout.exe
3060	timeout.exe

pid	process
4892	taskkill.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe

pid	process
3976	f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
3976	f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
2824
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2824
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2824

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2824
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe

pid process

3976 f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe

pid	process
2824

Suspicious use of AdjustPrivilegeToken 36 IoCs

Processes:

taskkill.exeCert.exe

description	pid	process
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeDebugPrivilege	4892	taskkill.exe
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824
Token: SeDebugPrivilege	4640	Cert.exe
Token: SeShutdownPrivilege	2824
Token: SeCreatePagefilePrivilege	2824

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

74642133471418249937.exe

pid process

4680 74642133471418249937.exe

pid	process
4680	74642133471418249937.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

C459.exe74642133471418249937.execmd.execmd.exe

description	pid	process	target process
PID 2824 wrote to memory of 2756	2824		C459.exe
PID 2824 wrote to memory of 2756	2824		C459.exe
PID 2824 wrote to memory of 2756	2824		C459.exe
PID 2756 wrote to memory of 4680	2756	C459.exe	74642133471418249937.exe
PID 2756 wrote to memory of 4680	2756	C459.exe	74642133471418249937.exe
PID 2756 wrote to memory of 4680	2756	C459.exe	74642133471418249937.exe
PID 4680 wrote to memory of 2664	4680	74642133471418249937.exe	cmd.exe
PID 4680 wrote to memory of 2664	4680	74642133471418249937.exe	cmd.exe
PID 4680 wrote to memory of 2664	4680	74642133471418249937.exe	cmd.exe
PID 2664 wrote to memory of 4892	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 4892	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 4892	2664	cmd.exe	taskkill.exe
PID 2756 wrote to memory of 1496	2756	C459.exe	cmd.exe
PID 2756 wrote to memory of 1496	2756	C459.exe	cmd.exe
PID 2756 wrote to memory of 1496	2756	C459.exe	cmd.exe
PID 1496 wrote to memory of 3104	1496	cmd.exe	timeout.exe
PID 1496 wrote to memory of 3104	1496	cmd.exe	timeout.exe
PID 1496 wrote to memory of 3104	1496	cmd.exe	timeout.exe
PID 2664 wrote to memory of 3060	2664	cmd.exe	timeout.exe
PID 2664 wrote to memory of 3060	2664	cmd.exe	timeout.exe
PID 2664 wrote to memory of 3060	2664	cmd.exe	timeout.exe
PID 4680 wrote to memory of 4640	4680	74642133471418249937.exe	Cert.exe
PID 4680 wrote to memory of 4640	4680	74642133471418249937.exe	Cert.exe
PID 4680 wrote to memory of 4640	4680	74642133471418249937.exe	Cert.exe

C:\Users\Admin\AppData\Local\Temp\f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe
"C:\Users\Admin\AppData\Local\Temp\f9655fbff56932b0be83e2e58b52a4ba04e9d7b7a4d24fb24bc177463af74da7.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3976

C:\Users\Admin\AppData\Local\Temp\C459.exe
C:\Users\Admin\AppData\Local\Temp\C459.exe
1⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2756

C:\ProgramData\74642133471418249937.exe
"C:\ProgramData\74642133471418249937.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4680

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\FilesH.bat" "
3⤵
- Drops file in Drivers directory
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Steam.exe
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4892

C:\Windows\SysWOW64\timeout.exe
timeout /t 1
4⤵
- Delays execution with timeout.exe
PID:3060

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Cert.exe
"C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Cert.exe"
3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:4640

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C459.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 1908
2⤵
- Program crash
PID:2244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2756 -ip 2756
1⤵
PID:5088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\74642133471418249937.exe
Filesize
389KB

MD5
5ec52400b61c5b586e24a85fa0a2318f

SHA1
579d8cfcf508c81e6e45e47186f33221d47563f3

SHA256
26f22547e17e37af41e6fca415a9fffb43c951c8c3d7129b1d4f8f358cf24ccd

SHA512
b7482d0d97b195a868fe77a882aa2b2d3009c908474dc8a66cc04325d7d3617732d5ac2e7fba8f7255d7cb283c114bbf276cddb336a6a30698b507b6181bba3b

Download Submit
C:\ProgramData\74642133471418249937.exe
Filesize
389KB

MD5
5ec52400b61c5b586e24a85fa0a2318f

SHA1
579d8cfcf508c81e6e45e47186f33221d47563f3

SHA256
26f22547e17e37af41e6fca415a9fffb43c951c8c3d7129b1d4f8f358cf24ccd

SHA512
b7482d0d97b195a868fe77a882aa2b2d3009c908474dc8a66cc04325d7d3617732d5ac2e7fba8f7255d7cb283c114bbf276cddb336a6a30698b507b6181bba3b

Download Submit
C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\ProgramData\sqlite3.dll
Filesize
1.1MB

MD5
1f44d4d3087c2b202cf9c90ee9d04b0f

SHA1
106a3ebc9e39ab6ddb3ff987efb6527c956f192d

SHA256
4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

SHA512
b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Cert.exe
Filesize
275KB

MD5
119ee6d6dcfa21f32dd9db95b365f256

SHA1
42d7f74eab4682928b03e577e2f5b9e6a2d95356

SHA256
ca128762eff2a68d3c319bd81574e423c79f59b1e445646ebe83b9c2135c5146

SHA512
cb4b8a2f037f1e0ab6a06094895ce9afffaaa428142c63259fa4d899ea53e06c581f5379156bb5f5c577daec8ed8d3e4e315d504771176f2c1a9fb8904a54b7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Cert.exe
Filesize
275KB

MD5
119ee6d6dcfa21f32dd9db95b365f256

SHA1
42d7f74eab4682928b03e577e2f5b9e6a2d95356

SHA256
ca128762eff2a68d3c319bd81574e423c79f59b1e445646ebe83b9c2135c5146

SHA512
cb4b8a2f037f1e0ab6a06094895ce9afffaaa428142c63259fa4d899ea53e06c581f5379156bb5f5c577daec8ed8d3e4e315d504771176f2c1a9fb8904a54b7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\FilesH.bat
Filesize
475B

MD5
979e62632d7fcd1c5f022d524dac901a

SHA1
0335075559e0e2b3d095920eae545a635fb1f61e

SHA256
6f90b594a016a0814d30cbb0aa665ebede4b710927efd5ef96ec518088b1e553

SHA512
dad192359ffc7f42d832b0e841553b9342293705db0adefa19edf6c47953bb61a0787cf2f7e0022ee52c5fab3571af7c2167e25ca93903c33693f825c07b961d

Download Submit
C:\Users\Admin\AppData\Local\Temp\C459.exe
Filesize
343KB

MD5
ba97a8ba982684ffd26140b002fcf5f6

SHA1
8d0b982e8e9aaf3a84e3b17ebc910d26d341b1f7

SHA256
a3282df5188935d442674443e22d2f8bc5d5390a778b386a675d2a66a619d47b

SHA512
27823fba4a49841df28e5cd99dc68d9a258213cafade5aacaabac60461bdc273751aba808c7008374b3c7861664c7b1b301556c9b2e5ada8bf6c435e05a5ea8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\C459.exe
Filesize
343KB

MD5
ba97a8ba982684ffd26140b002fcf5f6

SHA1
8d0b982e8e9aaf3a84e3b17ebc910d26d341b1f7

SHA256
a3282df5188935d442674443e22d2f8bc5d5390a778b386a675d2a66a619d47b

SHA512
27823fba4a49841df28e5cd99dc68d9a258213cafade5aacaabac60461bdc273751aba808c7008374b3c7861664c7b1b301556c9b2e5ada8bf6c435e05a5ea8f

Download Submit
memory/1496-151-0x0000000000000000-mapping.dmp

Download
memory/2664-148-0x0000000000000000-mapping.dmp

Download
memory/2756-139-0x0000000002F63000-0x0000000002F8F000-memory.dmp

Filesize
176KB

Download
memory/2756-154-0x0000000002F63000-0x0000000002F8F000-memory.dmp

Filesize
176KB

Download
memory/2756-141-0x0000000000400000-0x0000000002C44000-memory.dmp

Filesize
40.3MB

Download
memory/2756-140-0x0000000002ED0000-0x0000000002F19000-memory.dmp

Filesize
292KB

Download
memory/2756-158-0x0000000000400000-0x0000000002C44000-memory.dmp

Filesize
40.3MB

Download
memory/2756-136-0x0000000000000000-mapping.dmp

Download
memory/3060-153-0x0000000000000000-mapping.dmp

Download
memory/3104-152-0x0000000000000000-mapping.dmp

Download
memory/3976-135-0x0000000000400000-0x0000000002C2E000-memory.dmp

Filesize
40.2MB

Download
memory/3976-134-0x0000000000400000-0x0000000002C2E000-memory.dmp

Filesize
40.2MB

Download
memory/3976-133-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/3976-132-0x0000000002CE2000-0x0000000002CF8000-memory.dmp

Filesize
88KB

Download
memory/4640-155-0x0000000000000000-mapping.dmp

Download
memory/4640-159-0x00000000001B0000-0x00000000001FA000-memory.dmp

Filesize
296KB

Download
memory/4640-160-0x0000000006020000-0x0000000006042000-memory.dmp

Filesize
136KB

Download
memory/4680-145-0x0000000000000000-mapping.dmp

Download
memory/4892-150-0x0000000000000000-mapping.dmp

Download