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:

MSID293.tmpMSID293.tmp

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	MSID293.tmp
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	MSID293.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)	\??\E:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

MSID293.tmpMSID293.tmp

pid process

3340 MSID293.tmp
3432 MSID293.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

MSID293.tmp

description pid process target process

PID 3340 set thread context of 3432 3340 MSID293.tmp MSID293.tmp

pid	process
3340	MSID293.tmp
3432	MSID293.tmp

description	pid	process	target process
PID 3340 set thread context of 3432	3340	MSID293.tmp	MSID293.tmp

Drops file in Windows directory 8 IoCs

Processes:

msiexec.exe

description	ioc	process
File created	C:\Windows\Installer\SourceHash{29EF7317-DCA1-4159-97B2-C883AD400AC6}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID254.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID293.tmp	msiexec.exe
File created	C:\Windows\Installer\e57d0cd.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e57d0cd.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe

Executes dropped EXE 1 IoCs

Processes:

MSID293.tmp

pid process

3340 MSID293.tmp
Loads dropped DLL 1 IoCs

Processes:

MSID293.tmp

pid process

3432 MSID293.tmp

pid	process
3340	MSID293.tmp

pid	process
3432	MSID293.tmp

Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

vssvc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

1396 msiexec.exe
1396 msiexec.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

MSID293.tmp

pid process

3340 MSID293.tmp

pid	process
1396	msiexec.exe
1396	msiexec.exe

pid	process
3340	MSID293.tmp

Suspicious use of AdjustPrivilegeToken 55 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exesrtasks.exe

description	pid	process
Token: SeShutdownPrivilege	2672	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2672	msiexec.exe
Token: SeSecurityPrivilege	1396	msiexec.exe
Token: SeCreateTokenPrivilege	2672	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2672	msiexec.exe
Token: SeLockMemoryPrivilege	2672	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2672	msiexec.exe
Token: SeMachineAccountPrivilege	2672	msiexec.exe
Token: SeTcbPrivilege	2672	msiexec.exe
Token: SeSecurityPrivilege	2672	msiexec.exe
Token: SeTakeOwnershipPrivilege	2672	msiexec.exe
Token: SeLoadDriverPrivilege	2672	msiexec.exe
Token: SeSystemProfilePrivilege	2672	msiexec.exe
Token: SeSystemtimePrivilege	2672	msiexec.exe
Token: SeProfSingleProcessPrivilege	2672	msiexec.exe
Token: SeIncBasePriorityPrivilege	2672	msiexec.exe
Token: SeCreatePagefilePrivilege	2672	msiexec.exe
Token: SeCreatePermanentPrivilege	2672	msiexec.exe
Token: SeBackupPrivilege	2672	msiexec.exe
Token: SeRestorePrivilege	2672	msiexec.exe
Token: SeShutdownPrivilege	2672	msiexec.exe
Token: SeDebugPrivilege	2672	msiexec.exe
Token: SeAuditPrivilege	2672	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2672	msiexec.exe
Token: SeChangeNotifyPrivilege	2672	msiexec.exe
Token: SeRemoteShutdownPrivilege	2672	msiexec.exe
Token: SeUndockPrivilege	2672	msiexec.exe
Token: SeSyncAgentPrivilege	2672	msiexec.exe
Token: SeEnableDelegationPrivilege	2672	msiexec.exe
Token: SeManageVolumePrivilege	2672	msiexec.exe
Token: SeImpersonatePrivilege	2672	msiexec.exe
Token: SeCreateGlobalPrivilege	2672	msiexec.exe
Token: SeBackupPrivilege	232	vssvc.exe
Token: SeRestorePrivilege	232	vssvc.exe
Token: SeAuditPrivilege	232	vssvc.exe
Token: SeBackupPrivilege	1396	msiexec.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeTakeOwnershipPrivilege	1396	msiexec.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeTakeOwnershipPrivilege	1396	msiexec.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeTakeOwnershipPrivilege	1396	msiexec.exe
Token: SeBackupPrivilege	1520	srtasks.exe
Token: SeRestorePrivilege	1520	srtasks.exe
Token: SeSecurityPrivilege	1520	srtasks.exe
Token: SeTakeOwnershipPrivilege	1520	srtasks.exe
Token: SeBackupPrivilege	1520	srtasks.exe
Token: SeRestorePrivilege	1520	srtasks.exe
Token: SeSecurityPrivilege	1520	srtasks.exe
Token: SeTakeOwnershipPrivilege	1520	srtasks.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeTakeOwnershipPrivilege	1396	msiexec.exe
Token: SeRestorePrivilege	1396	msiexec.exe
Token: SeTakeOwnershipPrivilege	1396	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

2672 msiexec.exe
2672 msiexec.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSID293.tmp

pid process

3340 MSID293.tmp

pid	process
2672	msiexec.exe
2672	msiexec.exe

pid	process
3340	MSID293.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

msiexec.exeMSID293.tmp

description	pid	process	target process
PID 1396 wrote to memory of 1520	1396	msiexec.exe	srtasks.exe
PID 1396 wrote to memory of 1520	1396	msiexec.exe	srtasks.exe
PID 1396 wrote to memory of 3340	1396	msiexec.exe	MSID293.tmp
PID 1396 wrote to memory of 3340	1396	msiexec.exe	MSID293.tmp
PID 1396 wrote to memory of 3340	1396	msiexec.exe	MSID293.tmp
PID 3340 wrote to memory of 3432	3340	MSID293.tmp	MSID293.tmp
PID 3340 wrote to memory of 3432	3340	MSID293.tmp	MSID293.tmp
PID 3340 wrote to memory of 3432	3340	MSID293.tmp	MSID293.tmp
PID 3340 wrote to memory of 3432	3340	MSID293.tmp	MSID293.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:2672

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:1396

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1520

C:\Windows\Installer\MSID293.tmp
"C:\Windows\Installer\MSID293.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:3340

C:\Windows\Installer\MSID293.tmp
"C:\Windows\Installer\MSID293.tmp"
3⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Loads dropped DLL
PID:3432

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:232

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3952 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
1⤵
PID:3772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Config.Msi\e57d0d0.rbs
Filesize
663B

MD5
9f4d60cac760c6f7e8e02c8f940c95f1

SHA1
2631a253ebdd1bf57eb3af4b8609b77707d46bcd

SHA256
825b4a4817c340481aeb5cb928291b0e3967d990949e57f402002d0853c724f3

SHA512
e6d5afa08021d7246c17de1dd39472c4df0b20632add5aa489eec5cd69a05690d997a4bfe9e343ecaaca9b263bccc200f1f43e6e4e7bba4851d914ee89fa155c

Download Submit
C:\Windows\Installer\MSID293.tmp
Filesize
100KB

MD5
8c0ef68bfe8b4f2d72ca3599aedb6387

SHA1
b6c02d95c26e2ec62ba27d0e4c3cd3b1e7f25261

SHA256
4b2a32c7afbfb44a85d88bfd4f0a79306278d880c64a28bf3242dc686665c8fe

SHA512
87bf4a30a191e4e7ccc4c17122868a7355d20d4666c954d0229c47bd253077565ee151b33d3a3fff439d56cf0e6360d923055ec7a4993f797a8446a86d29d733

Download Submit
\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
Filesize
23.7MB

MD5
2efbffa176f2dc20d4900c51fc4ba04e

SHA1
80853a6924e5235188ec2c80236a72831dba6693

SHA256
a10e362d3e7e2a8c7334cee58d7db19b49801525660d226334ffe14bc8df3fe1

SHA512
df593e3841d856f7b227fd43e2d3ba41548eff7be00098dc356a2a813cf2b3d2cb2a45061d92f847f39a26df00599669b5546cca51d7c0da0c12f6507ff08b3a

Download Submit
\??\Volume{64fb06ed-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{725f07c7-4752-4421-b3d3-a94da4bf49cf}_OnDiskSnapshotProp
Filesize
6KB

MD5
3fbc3eb265ffa9237c8d5f35461e73da

SHA1
cc323295e7e3ea223163099997f12e6e5d40d98a

SHA256
8b6590ceee4dabc32be54b486ed1f1b83e8a5d349870457eafcc69f789d64f09

SHA512
9c840335b2d13f695aafe54bd686ea6ce35d23c5c1040633ecbd21b82b9c2936f6e854cdad55c3456175eaeeebc2803737fd6420bae47829fc36f90bc47192a1

Download Submit
memory/3340-14-0x0000000002200000-0x0000000002211000-memory.dmp

Filesize
68KB

Download
memory/3340-15-0x0000000077711000-0x0000000077831000-memory.dmp

Filesize
1.1MB

Download
memory/3340-21-0x0000000002200000-0x0000000002211000-memory.dmp

Filesize
68KB

Download
memory/3432-19-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/3432-22-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3432-39-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/3432-40-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads