guloader | 058ee0434baf472713da384ee3ba273f64995b9c7f83b7e62a8b3285b334b2cf

General

Target

5262da4295e8a62d58d17991b35bf860_JaffaCakes118.msi
Size

124KB
MD5

5262da4295e8a62d58d17991b35bf860
SHA1

3fba37528f6b06d2c89c7d86ce6352df438f1855
SHA256

058ee0434baf472713da384ee3ba273f64995b9c7f83b7e62a8b3285b334b2cf
SHA512

8a82d10997e8b64ab12688e6cb909e405644bfcf2ed0e47df9c16009bf1ae415c17bc5a0cc27717d34f6f5484ca27fe026893b4637ea01cb1209dd0427574c18
SSDEEP

1536:HEzzhi6Qu6TDW2rxtene90Ceqhg0Sh1xOeFPa+HNFiS79oe:HEzlQuExvene9zFhgDbsm7TiVe

Score

10^/10

guloader downloader

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MSIC7B4.tmpMSIC7B4.tmp

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	MSIC7B4.tmp
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	MSIC7B4.tmp

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

msiexec.exemsiexec.exe

description	ioc	process
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

MSIC7B4.tmpMSIC7B4.tmp

pid process

1828 MSIC7B4.tmp
1996 MSIC7B4.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

MSIC7B4.tmp

description pid process target process

PID 1828 set thread context of 1996 1828 MSIC7B4.tmp MSIC7B4.tmp

pid	process
1828	MSIC7B4.tmp
1996	MSIC7B4.tmp

description	pid	process	target process
PID 1828 set thread context of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp

Drops file in Windows directory 10 IoCs

Processes:

DrvInst.exemsiexec.exe

description	ioc	process
File opened for modification	C:\Windows\INF\setupapi.ev3	DrvInst.exe
File opened for modification	C:\Windows\INF\setupapi.dev.log	DrvInst.exe
File opened for modification	C:\Windows\Installer\f76c468.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC6D8.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\f76c46b.ipi	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev1	DrvInst.exe
File created	C:\Windows\Installer\f76c468.msi	msiexec.exe
File created	C:\Windows\Installer\f76c46b.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC7B4.tmp	msiexec.exe

Executes dropped EXE 1 IoCs

Processes:

MSIC7B4.tmp

pid process

1828 MSIC7B4.tmp
Loads dropped DLL 1 IoCs

Processes:

MSIC7B4.tmp

pid process

1996 MSIC7B4.tmp

pid	process
1828	MSIC7B4.tmp

pid	process
1996	MSIC7B4.tmp

Modifies data under HKEY_USERS 43 IoCs

Processes:

DrvInst.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

2700 msiexec.exe
2700 msiexec.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

MSIC7B4.tmp

pid process

1828 MSIC7B4.tmp

pid	process
2700	msiexec.exe
2700	msiexec.exe

pid	process
1828	MSIC7B4.tmp

Suspicious use of AdjustPrivilegeToken 61 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exeDrvInst.exe

description	pid	process
Token: SeShutdownPrivilege	2868	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2868	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeSecurityPrivilege	2700	msiexec.exe
Token: SeCreateTokenPrivilege	2868	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2868	msiexec.exe
Token: SeLockMemoryPrivilege	2868	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2868	msiexec.exe
Token: SeMachineAccountPrivilege	2868	msiexec.exe
Token: SeTcbPrivilege	2868	msiexec.exe
Token: SeSecurityPrivilege	2868	msiexec.exe
Token: SeTakeOwnershipPrivilege	2868	msiexec.exe
Token: SeLoadDriverPrivilege	2868	msiexec.exe
Token: SeSystemProfilePrivilege	2868	msiexec.exe
Token: SeSystemtimePrivilege	2868	msiexec.exe
Token: SeProfSingleProcessPrivilege	2868	msiexec.exe
Token: SeIncBasePriorityPrivilege	2868	msiexec.exe
Token: SeCreatePagefilePrivilege	2868	msiexec.exe
Token: SeCreatePermanentPrivilege	2868	msiexec.exe
Token: SeBackupPrivilege	2868	msiexec.exe
Token: SeRestorePrivilege	2868	msiexec.exe
Token: SeShutdownPrivilege	2868	msiexec.exe
Token: SeDebugPrivilege	2868	msiexec.exe
Token: SeAuditPrivilege	2868	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2868	msiexec.exe
Token: SeChangeNotifyPrivilege	2868	msiexec.exe
Token: SeRemoteShutdownPrivilege	2868	msiexec.exe
Token: SeUndockPrivilege	2868	msiexec.exe
Token: SeSyncAgentPrivilege	2868	msiexec.exe
Token: SeEnableDelegationPrivilege	2868	msiexec.exe
Token: SeManageVolumePrivilege	2868	msiexec.exe
Token: SeImpersonatePrivilege	2868	msiexec.exe
Token: SeCreateGlobalPrivilege	2868	msiexec.exe
Token: SeBackupPrivilege	3020	vssvc.exe
Token: SeRestorePrivilege	3020	vssvc.exe
Token: SeAuditPrivilege	3020	vssvc.exe
Token: SeBackupPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2464	DrvInst.exe
Token: SeLoadDriverPrivilege	2464	DrvInst.exe
Token: SeLoadDriverPrivilege	2464	DrvInst.exe
Token: SeLoadDriverPrivilege	2464	DrvInst.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe
Token: SeRestorePrivilege	2700	msiexec.exe
Token: SeTakeOwnershipPrivilege	2700	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

2868 msiexec.exe
2868 msiexec.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSIC7B4.tmp

pid process

1828 MSIC7B4.tmp

pid	process
2868	msiexec.exe
2868	msiexec.exe

pid	process
1828	MSIC7B4.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

msiexec.exeMSIC7B4.tmp

description	pid	process	target process
PID 2700 wrote to memory of 1828	2700	msiexec.exe	MSIC7B4.tmp
PID 2700 wrote to memory of 1828	2700	msiexec.exe	MSIC7B4.tmp
PID 2700 wrote to memory of 1828	2700	msiexec.exe	MSIC7B4.tmp
PID 2700 wrote to memory of 1828	2700	msiexec.exe	MSIC7B4.tmp
PID 1828 wrote to memory of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp
PID 1828 wrote to memory of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp
PID 1828 wrote to memory of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp
PID 1828 wrote to memory of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp
PID 1828 wrote to memory of 1996	1828	MSIC7B4.tmp	MSIC7B4.tmp

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\5262da4295e8a62d58d17991b35bf860_JaffaCakes118.msi
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2868

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700

C:\Windows\Installer\MSIC7B4.tmp
"C:\Windows\Installer\MSIC7B4.tmp"
2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Executes dropped EXE
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1828

C:\Windows\Installer\MSIC7B4.tmp
"C:\Windows\Installer\MSIC7B4.tmp"
3⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Loads dropped DLL
PID:1996

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3020

C:\Windows\system32\DrvInst.exe
DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005C8" "00000000000005AC"
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2464

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Config.Msi\f76c46c.rbs
Filesize
663B

MD5
d5fafbca42e11c6b13d4960646928812

SHA1
deebd9ef94428f70b10efbff32cca45644c14b05

SHA256
69cd323927cca147d530035e7260934cb343ff81ff37cb4ca90277b363c47002

SHA512
953d6c1410c81caba2e4f9438000b31146448a8057d3cfa1ad3cec1a64af7a8d33143a27d9b26896868a7b5987fc6fca83527f024c6d1fd8bcdaa4653cde6ce5

Download Submit
C:\Windows\Installer\MSIC7B4.tmp
Filesize
100KB

MD5
8c0ef68bfe8b4f2d72ca3599aedb6387

SHA1
b6c02d95c26e2ec62ba27d0e4c3cd3b1e7f25261

SHA256
4b2a32c7afbfb44a85d88bfd4f0a79306278d880c64a28bf3242dc686665c8fe

SHA512
87bf4a30a191e4e7ccc4c17122868a7355d20d4666c954d0229c47bd253077565ee151b33d3a3fff439d56cf0e6360d923055ec7a4993f797a8446a86d29d733

Download Submit
memory/1828-22-0x0000000000240000-0x0000000000251000-memory.dmp

Filesize
68KB

Download
memory/1828-17-0x0000000077830000-0x0000000077906000-memory.dmp

Filesize
856KB

Download
memory/1828-19-0x0000000000240000-0x0000000000251000-memory.dmp

Filesize
68KB

Download
memory/1828-16-0x0000000077640000-0x00000000777E9000-memory.dmp

Filesize
1.7MB

Download
memory/1828-15-0x0000000000240000-0x0000000000251000-memory.dmp

Filesize
68KB

Download
memory/1996-23-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1996-25-0x00000000001B0000-0x00000000002B0000-memory.dmp

Filesize
1024KB

Download
memory/1996-36-0x0000000077640000-0x00000000777E9000-memory.dmp

Filesize
1.7MB

Download
memory/1996-44-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1996-46-0x00000000001B0000-0x00000000002B0000-memory.dmp

Filesize
1024KB

Download
memory/1996-47-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads