ssload | dcae57ec4b69236146f744c143c42cc8bdac9da6e991904e6dbf67ec1179286a

General

Target

avp.msi
Size

1.4MB
MD5

4d81be09c23e02fab7364e508c21c111
SHA1

52cae521d7a808c8206f4b5afd6b037bc573b50e
SHA256

dcae57ec4b69236146f744c143c42cc8bdac9da6e991904e6dbf67ec1179286a
SHA512

4f5b4fdeb9a056025455ede8ee6e1757da8db64f9692df2a46558a3c04aaec551734b4d75803bbd579e1163b9aba5005f71c5efb22ee3d336779804a11b2b5a5
SSDEEP

24576:BqKxnNTYUx0ECIgYmfLVYeBZr7A9zdfoAX+8UhxcS:Bq6TYCZKumZr7ARdAAO8oxz

Score

10^/10

ssload loader

Malware Config

Signatures

SSLoad
SSLoad Unpacked DLL payload.
loader ssload

Detects SSLoad Unpacked payload 1 IoCs

loader

Processes:

resource	yara_rule
behavioral3/memory/4976-46-0x0000000002A00000-0x0000000002A73000-memory.dmp	family_ssload

Blocklisted process makes network request 2 IoCs

Processes:

MsiExec.exe

flow pid process

2 4976 MsiExec.exe
3 4976 MsiExec.exe

flow	pid	process
2	4976	MsiExec.exe
3	4976	MsiExec.exe

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

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 api.ipify.org
1 api.ipify.org

flow	ioc
2	api.ipify.org
1	api.ipify.org

Drops file in Windows directory 13 IoCs

Processes:

msiexec.exe

description	ioc	process
File created	C:\Windows\Installer\e577251.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF8A0F7A246A32C1C4.TMP	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{52EF198D-0C6C-406A-803F-F86D93DD7930}	msiexec.exe
File created	C:\Windows\SystemTemp\~DFF6793C833CD109BF.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI7290.tmp	msiexec.exe
File created	C:\Windows\SystemTemp\~DF31C98F439A963EEA.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFACDC8FD564279131.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\e577251.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\MSI72DF.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI739C.tmp	msiexec.exe

Loads dropped DLL 9 IoCs

Processes:

MsiExec.exeMsiExec.exe

pid process

1852 MsiExec.exe
1852 MsiExec.exe
1852 MsiExec.exe
1852 MsiExec.exe
1852 MsiExec.exe
1852 MsiExec.exe
4976 MsiExec.exe
4976 MsiExec.exe
4976 MsiExec.exe

pid	process
1852	MsiExec.exe
1852	MsiExec.exe
1852	MsiExec.exe
1852	MsiExec.exe
1852	MsiExec.exe
1852	MsiExec.exe
4976	MsiExec.exe
4976	MsiExec.exe
4976	MsiExec.exe

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

2288 msiexec.exe
2288 msiexec.exe

pid	process
2288	msiexec.exe
2288	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

msiexec.exemsiexec.exe

description	pid	process
Token: SeShutdownPrivilege	2472	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2472	msiexec.exe
Token: SeSecurityPrivilege	2288	msiexec.exe
Token: SeCreateTokenPrivilege	2472	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2472	msiexec.exe
Token: SeLockMemoryPrivilege	2472	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2472	msiexec.exe
Token: SeMachineAccountPrivilege	2472	msiexec.exe
Token: SeTcbPrivilege	2472	msiexec.exe
Token: SeSecurityPrivilege	2472	msiexec.exe
Token: SeTakeOwnershipPrivilege	2472	msiexec.exe
Token: SeLoadDriverPrivilege	2472	msiexec.exe
Token: SeSystemProfilePrivilege	2472	msiexec.exe
Token: SeSystemtimePrivilege	2472	msiexec.exe
Token: SeProfSingleProcessPrivilege	2472	msiexec.exe
Token: SeIncBasePriorityPrivilege	2472	msiexec.exe
Token: SeCreatePagefilePrivilege	2472	msiexec.exe
Token: SeCreatePermanentPrivilege	2472	msiexec.exe
Token: SeBackupPrivilege	2472	msiexec.exe
Token: SeRestorePrivilege	2472	msiexec.exe
Token: SeShutdownPrivilege	2472	msiexec.exe
Token: SeDebugPrivilege	2472	msiexec.exe
Token: SeAuditPrivilege	2472	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2472	msiexec.exe
Token: SeChangeNotifyPrivilege	2472	msiexec.exe
Token: SeRemoteShutdownPrivilege	2472	msiexec.exe
Token: SeUndockPrivilege	2472	msiexec.exe
Token: SeSyncAgentPrivilege	2472	msiexec.exe
Token: SeEnableDelegationPrivilege	2472	msiexec.exe
Token: SeManageVolumePrivilege	2472	msiexec.exe
Token: SeImpersonatePrivilege	2472	msiexec.exe
Token: SeCreateGlobalPrivilege	2472	msiexec.exe
Token: SeCreateTokenPrivilege	2472	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2472	msiexec.exe
Token: SeLockMemoryPrivilege	2472	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2472	msiexec.exe
Token: SeMachineAccountPrivilege	2472	msiexec.exe
Token: SeTcbPrivilege	2472	msiexec.exe
Token: SeSecurityPrivilege	2472	msiexec.exe
Token: SeTakeOwnershipPrivilege	2472	msiexec.exe
Token: SeLoadDriverPrivilege	2472	msiexec.exe
Token: SeSystemProfilePrivilege	2472	msiexec.exe
Token: SeSystemtimePrivilege	2472	msiexec.exe
Token: SeProfSingleProcessPrivilege	2472	msiexec.exe
Token: SeIncBasePriorityPrivilege	2472	msiexec.exe
Token: SeCreatePagefilePrivilege	2472	msiexec.exe
Token: SeCreatePermanentPrivilege	2472	msiexec.exe
Token: SeBackupPrivilege	2472	msiexec.exe
Token: SeRestorePrivilege	2472	msiexec.exe
Token: SeShutdownPrivilege	2472	msiexec.exe
Token: SeDebugPrivilege	2472	msiexec.exe
Token: SeAuditPrivilege	2472	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2472	msiexec.exe
Token: SeChangeNotifyPrivilege	2472	msiexec.exe
Token: SeRemoteShutdownPrivilege	2472	msiexec.exe
Token: SeUndockPrivilege	2472	msiexec.exe
Token: SeSyncAgentPrivilege	2472	msiexec.exe
Token: SeEnableDelegationPrivilege	2472	msiexec.exe
Token: SeManageVolumePrivilege	2472	msiexec.exe
Token: SeImpersonatePrivilege	2472	msiexec.exe
Token: SeCreateGlobalPrivilege	2472	msiexec.exe
Token: SeCreateTokenPrivilege	2472	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2472	msiexec.exe
Token: SeLockMemoryPrivilege	2472	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

2472 msiexec.exe
2472 msiexec.exe

pid	process
2472	msiexec.exe
2472	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

msiexec.exe

description	pid	process	target process
PID 2288 wrote to memory of 1852	2288	msiexec.exe	MsiExec.exe
PID 2288 wrote to memory of 1852	2288	msiexec.exe	MsiExec.exe
PID 2288 wrote to memory of 1852	2288	msiexec.exe	MsiExec.exe
PID 2288 wrote to memory of 4872	2288	msiexec.exe	srtasks.exe
PID 2288 wrote to memory of 4872	2288	msiexec.exe	srtasks.exe
PID 2288 wrote to memory of 4976	2288	msiexec.exe	MsiExec.exe
PID 2288 wrote to memory of 4976	2288	msiexec.exe	MsiExec.exe
PID 2288 wrote to memory of 4976	2288	msiexec.exe	MsiExec.exe

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\avp.msi
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2472

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:2288
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding C078F86D11FEB4EF4F05DA5E809F556E C
  2⤵
  - Loads dropped DLL
  PID:1852
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:4872
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding BD3870B03038F66BD140275C0034E942
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:4976

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:3788

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Config.Msi\e577252.rbs

Filesize
1KB

MD5
54df0a31746ab7c97bde68e569691c4b

SHA1
5081fd28d59bcbfec1e56f3079a09fa83fff599c

SHA256
2bd280388cfbf4ce7056f7dbe2d629a8bb3d0bbb1b647a73c30d8e8ce33c5459

SHA512
2636451ad8cf3486b9326f83fef6926fef1e72f3d7b5a251bf2c5fd737c4794a98c525a2e5a9846e7c0bc88ee2d9a9df17d547f5fed8da798556da87cc967a90

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSI3F3B.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Users\Admin\AppData\Local\sharepoint\forcedelctl.dll

Filesize
956KB

MD5
b28a478eb5b99efcdc7caf428bffb89a

SHA1
d394c7b8fe15753bfbff79fb4f648f6f8bae70f9

SHA256
3bca1dcaef4430272b9029c9a4bc8be0d45ecff66e8de8679ed30d8afab00f6f

SHA512
decb2581f64949bfaaaf0368917f0705d7a4b7392ec272eda025cf06a4384ec4cdd5202081c2e085f00645029dd96bfef262e8628bed1861185adf6281c1cc88

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\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

Filesize
24.6MB

MD5
dc437440c92fef57dc5719f81be96112

SHA1
016332193f327e42e1bd5f35c08bc41f9da9be19

SHA256
d1f32642ba1a31c0b00a5f5d451910330d6fce352a6684fd83bbef75d46641d8

SHA512
bf8c6043cd7f2be5c888ce42434d042fd53deb15dc36578605fe7d8e417f9e759800c1b4e9062fc393f94d92792d330a1d838a614f1f3dfe42c08cb2863e3d58

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\??\Volume{98b71625-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{981f9174-58b4-4cf8-8efa-cba204cd9742}_OnDiskSnapshotProp

Filesize
6KB

MD5
aff8d7b88298ea040ccebc8af32599a0

SHA1
b07e481ce58272a1031bf770394f62751482f022

SHA256
b1f580a43012689fde90a6149c3981509b3754017cd019ba32e8dd652c25926f

SHA512
b7c534b695424268621c477f8bf84ab966983e50e51efe6a609a729996fd48401e83fff5352a9441d1def4aa56ff779e364ee7a6d5007672c59948821f08c0c7

Download Submit
memory/4976-45-0x0000000010000000-0x00000000100F9000-memory.dmp

Filesize
996KB

Download
memory/4976-46-0x0000000002A00000-0x0000000002A73000-memory.dmp

Filesize
460KB

Download
memory/4976-51-0x0000000010000000-0x00000000100F9000-memory.dmp

Filesize
996KB

Download
memory/4976-53-0x0000000010000000-0x00000000100F9000-memory.dmp

Filesize
996KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads