strrat | a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0

Analysis

max time kernel
148s
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
23/01/2025, 22:41

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General

Target
INV32762.jar
Size 198KB
Sample250123-2l3jraylfp
SHA256 a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0
MD5 0326cd8bc7583d4ef9bd89e158f504e4
SHA1 87a3f552568e6b5209fb8b44c2c6c0b50c8ca46f
SHA512 ebf29aeaa9f4ad8a613cab52278568efc70aed6c1032c1f92b53ba9a258cb80b4b5d209e588d8a169493754a34c9495a9ab3e9157983d65c0e9291c8af8c6b5c
SSDEEP 3072:HEythVs8HXV0aq4fKjV/36nipUuAVfgSBfQWyn2wV6Vs21dl+ZXJCU7XRQ:HEEhVs8lrKkieuiBly2GMsodgXMgXRQ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

strrat persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Strrat family
strrat

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\INV32762.jar	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\INV32762 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\INV32762.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\INV32762 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\INV32762.jar\""	java.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	ip-api.com

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
624	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1940	WMIC.exe
Token: SeSecurityPrivilege	1940	WMIC.exe
Token: SeTakeOwnershipPrivilege	1940	WMIC.exe
Token: SeLoadDriverPrivilege	1940	WMIC.exe
Token: SeSystemProfilePrivilege	1940	WMIC.exe
Token: SeSystemtimePrivilege	1940	WMIC.exe
Token: SeProfSingleProcessPrivilege	1940	WMIC.exe
Token: SeIncBasePriorityPrivilege	1940	WMIC.exe
Token: SeCreatePagefilePrivilege	1940	WMIC.exe
Token: SeBackupPrivilege	1940	WMIC.exe
Token: SeRestorePrivilege	1940	WMIC.exe
Token: SeShutdownPrivilege	1940	WMIC.exe
Token: SeDebugPrivilege	1940	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1940	WMIC.exe
Token: SeRemoteShutdownPrivilege	1940	WMIC.exe
Token: SeUndockPrivilege	1940	WMIC.exe
Token: SeManageVolumePrivilege	1940	WMIC.exe
Token: 33	1940	WMIC.exe
Token: 34	1940	WMIC.exe
Token: 35	1940	WMIC.exe
Token: 36	1940	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1940	WMIC.exe
Token: SeSecurityPrivilege	1940	WMIC.exe
Token: SeTakeOwnershipPrivilege	1940	WMIC.exe
Token: SeLoadDriverPrivilege	1940	WMIC.exe
Token: SeSystemProfilePrivilege	1940	WMIC.exe
Token: SeSystemtimePrivilege	1940	WMIC.exe
Token: SeProfSingleProcessPrivilege	1940	WMIC.exe
Token: SeIncBasePriorityPrivilege	1940	WMIC.exe
Token: SeCreatePagefilePrivilege	1940	WMIC.exe
Token: SeBackupPrivilege	1940	WMIC.exe
Token: SeRestorePrivilege	1940	WMIC.exe
Token: SeShutdownPrivilege	1940	WMIC.exe
Token: SeDebugPrivilege	1940	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1940	WMIC.exe
Token: SeRemoteShutdownPrivilege	1940	WMIC.exe
Token: SeUndockPrivilege	1940	WMIC.exe
Token: SeManageVolumePrivilege	1940	WMIC.exe
Token: 33	1940	WMIC.exe
Token: 34	1940	WMIC.exe
Token: 35	1940	WMIC.exe
Token: 36	1940	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4836	WMIC.exe
Token: SeSecurityPrivilege	4836	WMIC.exe
Token: SeTakeOwnershipPrivilege	4836	WMIC.exe
Token: SeLoadDriverPrivilege	4836	WMIC.exe
Token: SeSystemProfilePrivilege	4836	WMIC.exe
Token: SeSystemtimePrivilege	4836	WMIC.exe
Token: SeProfSingleProcessPrivilege	4836	WMIC.exe
Token: SeIncBasePriorityPrivilege	4836	WMIC.exe
Token: SeCreatePagefilePrivilege	4836	WMIC.exe
Token: SeBackupPrivilege	4836	WMIC.exe
Token: SeRestorePrivilege	4836	WMIC.exe
Token: SeShutdownPrivilege	4836	WMIC.exe
Token: SeDebugPrivilege	4836	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4836	WMIC.exe
Token: SeRemoteShutdownPrivilege	4836	WMIC.exe
Token: SeUndockPrivilege	4836	WMIC.exe
Token: SeManageVolumePrivilege	4836	WMIC.exe
Token: 33	4836	WMIC.exe
Token: 34	4836	WMIC.exe
Token: 35	4836	WMIC.exe
Token: 36	4836	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4836	WMIC.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 3128	2328	java.exe	83
PID 2328 wrote to memory of 3128	2328	java.exe	83
PID 2328 wrote to memory of 5016	2328	java.exe	84
PID 2328 wrote to memory of 5016	2328	java.exe	84
PID 3128 wrote to memory of 624	3128	cmd.exe	87
PID 3128 wrote to memory of 624	3128	cmd.exe	87
PID 5016 wrote to memory of 320	5016	java.exe	88
PID 5016 wrote to memory of 320	5016	java.exe	88
PID 320 wrote to memory of 1940	320	cmd.exe	90
PID 320 wrote to memory of 1940	320	cmd.exe	90
PID 5016 wrote to memory of 4104	5016	java.exe	92
PID 5016 wrote to memory of 4104	5016	java.exe	92
PID 4104 wrote to memory of 4836	4104	cmd.exe	94
PID 4104 wrote to memory of 4836	4104	cmd.exe	94
PID 5016 wrote to memory of 3224	5016	java.exe	95
PID 5016 wrote to memory of 3224	5016	java.exe	95
PID 3224 wrote to memory of 1240	3224	cmd.exe	97
PID 3224 wrote to memory of 1240	3224	cmd.exe	97
PID 5016 wrote to memory of 1388	5016	java.exe	98
PID 5016 wrote to memory of 1388	5016	java.exe	98
PID 1388 wrote to memory of 5012	1388	cmd.exe	100
PID 1388 wrote to memory of 5012	1388	cmd.exe	100

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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\INV32762.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\INV32762.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3128
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\INV32762.jar"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:624
- C:\Program Files\Java\jre-1.8\bin\java.exe
  "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\INV32762.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:320
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1940
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4104
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:4836
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3224
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
      4⤵
      PID:1240
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1388
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
      4⤵
      PID:5012

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

INV32762.jar

Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\INV32762.jar
Size 198KB
SHA256 a5d4d6644f4c0fbacd3781a2d151e76bcd45de2da0dbf458cba84b8e34c9c1d0
MD5 0326cd8bc7583d4ef9bd89e158f504e4
SHA1 87a3f552568e6b5209fb8b44c2c6c0b50c8ca46f
SHA512 ebf29aeaa9f4ad8a613cab52278568efc70aed6c1032c1f92b53ba9a258cb80b4b5d209e588d8a169493754a34c9495a9ab3e9157983d65c0e9291c8af8c6b5c
SSDEEP 3072:HEythVs8HXV0aq4fKjV/36nipUuAVfgSBfQWyn2wV6Vs21dl+ZXJCU7XRQ:HEEhVs8lrKkieuiBly2GMsodgXMgXRQ
MD5 SHA1 SHA512 SSDEEP

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3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 9250e55adbc810ee91a0db36715e429cedbb1a08b5664976af81255aa24db0cb
MD5 e4b58ef769d2105bb2eeda89fb302fba
SHA1 90907e80d73b35165d0796abd6524ad5c5873a51
SHA512 b57202c4824b5f56da404dd2f3ea6b0ae7c3442e3f461a6ca90b22a6ee757fe73c50ffb9a5ca88561116bc3eaaa04ae6692914fb1a4e7e0f7fc66e2bce324574
MD5 SHA1 SHA512

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memory/2328-33-0x000002219A4B0000-0x000002219A4B1000-memory.dmp

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memory/2328-39-0x000002219C020000-0x000002219C030000-memory.dmp

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memory/2328-20-0x000002219C030000-0x000002219C040000-memory.dmp

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memory/2328-19-0x000002219C020000-0x000002219C030000-memory.dmp

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memory/2328-23-0x000002219C040000-0x000002219C050000-memory.dmp

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memory/2328-27-0x000002219C060000-0x000002219C070000-memory.dmp

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memory/2328-25-0x000002219C050000-0x000002219C060000-memory.dmp

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memory/2328-14-0x000002219C000000-0x000002219C010000-memory.dmp

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memory/2328-13-0x000002219BFF0000-0x000002219C000000-memory.dmp

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memory/2328-16-0x000002219C010000-0x000002219C020000-memory.dmp

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memory/2328-38-0x000002219C010000-0x000002219C020000-memory.dmp

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memory/2328-43-0x000002219C060000-0x000002219C070000-memory.dmp

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memory/2328-42-0x000002219C050000-0x000002219C060000-memory.dmp

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memory/2328-41-0x000002219C040000-0x000002219C050000-memory.dmp

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memory/2328-40-0x000002219BD80000-0x000002219BFF0000-memory.dmp

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memory/2328-37-0x000002219C000000-0x000002219C010000-memory.dmp

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memory/2328-36-0x000002219BFF0000-0x000002219C000000-memory.dmp

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memory/2328-35-0x000002219C030000-0x000002219C040000-memory.dmp

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memory/2328-2-0x000002219BD80000-0x000002219BFF0000-memory.dmp

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memory/5016-47-0x0000020713FC0000-0x0000020714230000-memory.dmp

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memory/5016-58-0x0000020714230000-0x0000020714240000-memory.dmp

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memory/5016-60-0x0000020714240000-0x0000020714250000-memory.dmp

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memory/5016-63-0x0000020714250000-0x0000020714260000-memory.dmp

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memory/5016-64-0x0000020714260000-0x0000020714270000-memory.dmp

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memory/5016-66-0x0000020714270000-0x0000020714280000-memory.dmp

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memory/5016-70-0x0000020714280000-0x0000020714290000-memory.dmp

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memory/5016-71-0x0000020714290000-0x00000207142A0000-memory.dmp

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memory/5016-74-0x00000207142B0000-0x00000207142C0000-memory.dmp

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memory/5016-73-0x00000207142A0000-0x00000207142B0000-memory.dmp

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memory/5016-76-0x0000020713FA0000-0x0000020713FA1000-memory.dmp

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memory/5016-78-0x0000020713FC0000-0x0000020714230000-memory.dmp

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memory/5016-80-0x0000020714230000-0x0000020714240000-memory.dmp

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memory/5016-82-0x0000020714240000-0x0000020714250000-memory.dmp

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memory/5016-84-0x0000020714250000-0x0000020714260000-memory.dmp

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memory/5016-85-0x0000020714260000-0x0000020714270000-memory.dmp

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memory/5016-86-0x0000020714270000-0x0000020714280000-memory.dmp

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memory/5016-87-0x0000020714280000-0x0000020714290000-memory.dmp

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memory/5016-88-0x0000020714290000-0x00000207142A0000-memory.dmp

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memory/5016-89-0x00000207142A0000-0x00000207142B0000-memory.dmp

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memory/5016-90-0x00000207142B0000-0x00000207142C0000-memory.dmp

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memory/5016-94-0x00000207142C0000-0x00000207142D0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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