strrat | 423014eff22c413aa26c766bc4e18fb8dddfca3329e6b99fb238050c36aca952 | Triage

Analysis

max time kernel
23s
max time network
26s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
03-01-2025 09:52

Sharing

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General

Target

TEKLIF-ISTEME.jar
Size

64KB
MD5

2dc3ec1f2b21887d14f66045a1bf312f
SHA1

ee559cc3e69ca0c429d13576e086e2dcba323332
SHA256

361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43
SHA512

d68443266a0e5ef08fcd72d8bf0cdd3d17914f57c6fbd37e0eaf648b4dff406c4c2e55a3b2daa6dbeddc9ad656971b3dbb0b635caff65d9d28c60ea986682812
SSDEEP

1536:S59vZVcVMHH45oJxm4UxtOPLpMy09xHrd3W4UB:SjZnHY5IctOPLpU04UB

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\TEKLIF-ISTEME.jar	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3587106988-279496464-3440778474-1000\Software\Microsoft\Windows\CurrentVersion\Run\TEKLIF-ISTEME = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\TEKLIF-ISTEME.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TEKLIF-ISTEME = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\TEKLIF-ISTEME.jar\""	java.exe

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

pid	Process
4020	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2936	2828	java.exe	80
PID 2828 wrote to memory of 2936	2828	java.exe	80
PID 2828 wrote to memory of 636	2828	java.exe	82
PID 2828 wrote to memory of 636	2828	java.exe	82
PID 2936 wrote to memory of 4020	2936	cmd.exe	84
PID 2936 wrote to memory of 4020	2936	cmd.exe	84

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\TEKLIF-ISTEME.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\TEKLIF-ISTEME.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\TEKLIF-ISTEME.jar"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4020
- 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\TEKLIF-ISTEME.jar"
  2⤵
  PID:636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scheduled Task

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\TEKLIF-ISTEME.jar

Filesize
64KB

MD5
2dc3ec1f2b21887d14f66045a1bf312f

SHA1
ee559cc3e69ca0c429d13576e086e2dcba323332

SHA256
361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43

SHA512
d68443266a0e5ef08fcd72d8bf0cdd3d17914f57c6fbd37e0eaf648b4dff406c4c2e55a3b2daa6dbeddc9ad656971b3dbb0b635caff65d9d28c60ea986682812

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
2d4df84f60e95636dc0a1d56e18cc872

SHA1
54db442113150b88e41227cf9e5ee45f34371a7f

SHA256
51d1540c68a0ab0d5a308ec71ace39eaf958d64d2ed5f12f487dd5967b059266

SHA512
fa6ca2d353d5a4d7d5f09c62cd3f95861b2bdeded94007b54e90570424eb074e13b6aa7198563040fe7a7465cac3b1c2d68184e2850f92ce3b892798b0aac320

Download Submit
memory/636-65-0x000002279AD40000-0x000002279AD50000-memory.dmp

Filesize
64KB

Download
memory/636-69-0x000002279ACE0000-0x000002279ACF0000-memory.dmp

Filesize
64KB

Download
memory/636-75-0x000002279AD40000-0x000002279AD50000-memory.dmp

Filesize
64KB

Download
memory/636-74-0x000002279AD30000-0x000002279AD40000-memory.dmp

Filesize
64KB

Download
memory/636-73-0x000002279AD20000-0x000002279AD30000-memory.dmp

Filesize
64KB

Download
memory/636-72-0x000002279AD10000-0x000002279AD20000-memory.dmp

Filesize
64KB

Download
memory/636-71-0x000002279AD00000-0x000002279AD10000-memory.dmp

Filesize
64KB

Download
memory/636-53-0x000002279ACE0000-0x000002279ACF0000-memory.dmp

Filesize
64KB

Download
memory/636-70-0x000002279ACF0000-0x000002279AD00000-memory.dmp

Filesize
64KB

Download
memory/636-42-0x000002279AA70000-0x000002279ACE0000-memory.dmp

Filesize
2.4MB

Download
memory/636-67-0x000002279AA70000-0x000002279ACE0000-memory.dmp

Filesize
2.4MB

Download
memory/636-66-0x000002279AA50000-0x000002279AA51000-memory.dmp

Filesize
4KB

Download
memory/636-63-0x000002279AD20000-0x000002279AD30000-memory.dmp

Filesize
64KB

Download
memory/636-55-0x000002279ACF0000-0x000002279AD00000-memory.dmp

Filesize
64KB

Download
memory/636-64-0x000002279AD30000-0x000002279AD40000-memory.dmp

Filesize
64KB

Download
memory/636-60-0x000002279AD10000-0x000002279AD20000-memory.dmp

Filesize
64KB

Download
memory/636-58-0x000002279AD00000-0x000002279AD10000-memory.dmp

Filesize
64KB

Download
memory/2828-37-0x000001968A230000-0x000001968A240000-memory.dmp

Filesize
64KB

Download
memory/2828-30-0x0000019688750000-0x0000019688751000-memory.dmp

Filesize
4KB

Download
memory/2828-18-0x000001968A220000-0x000001968A230000-memory.dmp

Filesize
64KB

Download
memory/2828-32-0x0000019689F80000-0x000001968A1F0000-memory.dmp

Filesize
2.4MB

Download
memory/2828-33-0x000001968A1F0000-0x000001968A200000-memory.dmp

Filesize
64KB

Download
memory/2828-2-0x0000019689F80000-0x000001968A1F0000-memory.dmp

Filesize
2.4MB

Download
memory/2828-34-0x000001968A200000-0x000001968A210000-memory.dmp

Filesize
64KB

Download
memory/2828-35-0x000001968A210000-0x000001968A220000-memory.dmp

Filesize
64KB

Download
memory/2828-36-0x000001968A220000-0x000001968A230000-memory.dmp

Filesize
64KB

Download
memory/2828-16-0x000001968A210000-0x000001968A220000-memory.dmp

Filesize
64KB

Download
memory/2828-38-0x000001968A240000-0x000001968A250000-memory.dmp

Filesize
64KB

Download
memory/2828-14-0x000001968A200000-0x000001968A210000-memory.dmp

Filesize
64KB

Download
memory/2828-24-0x000001968A250000-0x000001968A260000-memory.dmp

Filesize
64KB

Download
memory/2828-22-0x000001968A240000-0x000001968A250000-memory.dmp

Filesize
64KB

Download
memory/2828-12-0x000001968A1F0000-0x000001968A200000-memory.dmp

Filesize
64KB

Download
memory/2828-20-0x000001968A230000-0x000001968A240000-memory.dmp

Filesize
64KB

Download