strrat | 2827cf7e0e7863202288f9735cfadde1dff2e6b271ba3ce50080a5b32cd97261

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2023, 08:11

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General

Target
Pago.jar
Size 70KB
Sample230531-j3aaeseb5t
SHA256 2827cf7e0e7863202288f9735cfadde1dff2e6b271ba3ce50080a5b32cd97261
MD5 6e6fb26ff6028ce18e7fb2956c9f934a
SHA1 8671bbe30e60569d8089323ceadad83088db0eb2
SHA512 cb09f7938571045395912112a87377a5c6de351fa7e75acdc651e4cb4a420cd25076b71f0442c05d777a3d9c34189040eaa5a8f709c2449567fa3c0aa27228f8
SSDEEP 1536:EDEJ5JDLCStQ5yc38E5a3Ptb7Ex+2e9ct5UNPJVvZ129UpmePF:lPDLUP38E5YPtbieIKLpkUkwF
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

Drops startup file 1 IoCs

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Pago = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Pago.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Pago = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Pago.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
31	ip-api.com

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
348	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
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
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	4676	WMIC.exe
Token: SeSecurityPrivilege	4676	WMIC.exe
Token: SeTakeOwnershipPrivilege	4676	WMIC.exe
Token: SeLoadDriverPrivilege	4676	WMIC.exe
Token: SeSystemProfilePrivilege	4676	WMIC.exe
Token: SeSystemtimePrivilege	4676	WMIC.exe
Token: SeProfSingleProcessPrivilege	4676	WMIC.exe
Token: SeIncBasePriorityPrivilege	4676	WMIC.exe
Token: SeCreatePagefilePrivilege	4676	WMIC.exe
Token: SeBackupPrivilege	4676	WMIC.exe
Token: SeRestorePrivilege	4676	WMIC.exe
Token: SeShutdownPrivilege	4676	WMIC.exe
Token: SeDebugPrivilege	4676	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4676	WMIC.exe
Token: SeRemoteShutdownPrivilege	4676	WMIC.exe
Token: SeUndockPrivilege	4676	WMIC.exe
Token: SeManageVolumePrivilege	4676	WMIC.exe
Token: 33	4676	WMIC.exe
Token: 34	4676	WMIC.exe
Token: 35	4676	WMIC.exe
Token: 36	4676	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4676	WMIC.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 392	1740	java.exe	88
PID 1740 wrote to memory of 392	1740	java.exe	88
PID 1740 wrote to memory of 3612	1740	java.exe	89
PID 1740 wrote to memory of 3612	1740	java.exe	89
PID 392 wrote to memory of 348	392	cmd.exe	92
PID 392 wrote to memory of 348	392	cmd.exe	92
PID 3612 wrote to memory of 1208	3612	java.exe	93
PID 3612 wrote to memory of 1208	3612	java.exe	93
PID 1208 wrote to memory of 4836	1208	cmd.exe	95
PID 1208 wrote to memory of 4836	1208	cmd.exe	95
PID 3612 wrote to memory of 4372	3612	java.exe	96
PID 3612 wrote to memory of 4372	3612	java.exe	96
PID 4372 wrote to memory of 4676	4372	cmd.exe	98
PID 4372 wrote to memory of 4676	4372	cmd.exe	98
PID 3612 wrote to memory of 4896	3612	java.exe	99
PID 3612 wrote to memory of 4896	3612	java.exe	99
PID 4896 wrote to memory of 3372	4896	cmd.exe	101
PID 4896 wrote to memory of 3372	4896	cmd.exe	101
PID 3612 wrote to memory of 5092	3612	java.exe	102
PID 3612 wrote to memory of 5092	3612	java.exe	102
PID 5092 wrote to memory of 4880	5092	cmd.exe	104
PID 5092 wrote to memory of 4880	5092	cmd.exe	104

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:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Pago.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Pago.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:392
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Pago.jar"
    3⤵
    - Creates scheduled task(s)
    PID:348
- C:\Program Files\Java\jre1.8.0_66\bin\java.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Pago.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3612
- - 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:1208
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /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 caption,OSArchitecture /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4372
  - - 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:4676
- - 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:4896
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
      4⤵
      PID:3372
- - 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:5092
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
      4⤵
      PID:4880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Pago.jar

Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Pago.jar
Size 70KB
SHA256 2827cf7e0e7863202288f9735cfadde1dff2e6b271ba3ce50080a5b32cd97261
MD5 6e6fb26ff6028ce18e7fb2956c9f934a
SHA1 8671bbe30e60569d8089323ceadad83088db0eb2
SHA512 cb09f7938571045395912112a87377a5c6de351fa7e75acdc651e4cb4a420cd25076b71f0442c05d777a3d9c34189040eaa5a8f709c2449567fa3c0aa27228f8
SSDEEP 1536:EDEJ5JDLCStQ5yc38E5a3Ptb7Ex+2e9ct5UNPJVvZ129UpmePF:lPDLUP38E5YPtbieIKLpkUkwF
MD5 SHA1 SHA512 SSDEEP

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90737d32e3aba4b.timestamp

Path C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
Size 50B
SHA256 dc41674f5da4a144c4c6d9e671b585b8cad0ed9811d2edc790741793c975a056
MD5 455d5dc4767c89104114f9f4c6b2c76a
SHA1 2f12b6078c77277fcf258c76dc82ace87091b6ad
SHA512 5d5c713f2c0f6fd34ed5b9deae922b95065add46669bd2db4b493134735f07d8d202762e6a94cd19e6180b7fdefbd6a38b4e32de4ab82e3d5f92f17ba88d1879
MD5 SHA1 SHA512

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Pago.jar

Path C:\Users\Admin\AppData\Roaming\Pago.jar
Size 70KB
SHA256 2827cf7e0e7863202288f9735cfadde1dff2e6b271ba3ce50080a5b32cd97261
MD5 6e6fb26ff6028ce18e7fb2956c9f934a
SHA1 8671bbe30e60569d8089323ceadad83088db0eb2
SHA512 cb09f7938571045395912112a87377a5c6de351fa7e75acdc651e4cb4a420cd25076b71f0442c05d777a3d9c34189040eaa5a8f709c2449567fa3c0aa27228f8
SSDEEP 1536:EDEJ5JDLCStQ5yc38E5a3Ptb7Ex+2e9ct5UNPJVvZ129UpmePF:lPDLUP38E5YPtbieIKLpkUkwF
MD5 SHA1 SHA512 SSDEEP

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memory/1740-143-0x0000000002900000-0x0000000002901000-memory.dmp

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memory/3612-164-0x00000000009F0000-0x00000000009F1000-memory.dmp

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memory/3612-170-0x00000000009F0000-0x00000000009F1000-memory.dmp

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memory/3612-205-0x00000000009F0000-0x00000000009F1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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