strrat | 423014eff22c413aa26c766bc4e18fb8dddfca3329e6b99fb238050c36aca952 | Triage

Analysis

max time kernel
30s
max time network
31s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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-1-5-21-2878641211-696417878-3864914810-1000\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
1856	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 4384	1432	java.exe	87
PID 1432 wrote to memory of 4384	1432	java.exe	87
PID 1432 wrote to memory of 2692	1432	java.exe	89
PID 1432 wrote to memory of 2692	1432	java.exe	89
PID 4384 wrote to memory of 1856	4384	cmd.exe	91
PID 4384 wrote to memory of 1856	4384	cmd.exe	91

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:1432
- 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:4384
- - 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:1856
- 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:2692

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\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
56bec39125487daa21b8ca3f1c50f96c

SHA1
72b88375c18707b6f60147a9a575b96625bc4603

SHA256
ef6af6414a9362995fde846e1a080290c7605da780a914fd2fb08708b739fdac

SHA512
a0fc9be0005b405ae4c1ecc9f43b8dd57e2c336aebdbff7af08d15134aa26c99283aef3b1be061d02b9e7f9e3e3a085801fbb6cee28cf2917165371e4b984c7a

Download Submit
C:\Users\Admin\AppData\Roaming\TEKLIF-ISTEME.jar

Filesize
64KB

MD5
2dc3ec1f2b21887d14f66045a1bf312f

SHA1
ee559cc3e69ca0c429d13576e086e2dcba323332

SHA256
361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43

SHA512
d68443266a0e5ef08fcd72d8bf0cdd3d17914f57c6fbd37e0eaf648b4dff406c4c2e55a3b2daa6dbeddc9ad656971b3dbb0b635caff65d9d28c60ea986682812

Download Submit
memory/1432-36-0x0000023D06DF0000-0x0000023D06E00000-memory.dmp

Filesize
64KB

Download
memory/1432-15-0x0000023D06E00000-0x0000023D06E10000-memory.dmp

Filesize
64KB

Download
memory/1432-17-0x0000023D06E10000-0x0000023D06E20000-memory.dmp

Filesize
64KB

Download
memory/1432-21-0x0000023D06E30000-0x0000023D06E40000-memory.dmp

Filesize
64KB

Download
memory/1432-20-0x0000023D06E20000-0x0000023D06E30000-memory.dmp

Filesize
64KB

Download
memory/1432-24-0x0000023D06E40000-0x0000023D06E50000-memory.dmp

Filesize
64KB

Download
memory/1432-2-0x0000023D06B80000-0x0000023D06DF0000-memory.dmp

Filesize
2.4MB

Download
memory/1432-27-0x0000023D06E60000-0x0000023D06E70000-memory.dmp

Filesize
64KB

Download
memory/1432-13-0x0000023D06DF0000-0x0000023D06E00000-memory.dmp

Filesize
64KB

Download
memory/1432-35-0x0000023D06B80000-0x0000023D06DF0000-memory.dmp

Filesize
2.4MB

Download
memory/1432-43-0x0000023D06E60000-0x0000023D06E70000-memory.dmp

Filesize
64KB

Download
memory/1432-42-0x0000023D06E50000-0x0000023D06E60000-memory.dmp

Filesize
64KB

Download
memory/1432-41-0x0000023D06E40000-0x0000023D06E50000-memory.dmp

Filesize
64KB

Download
memory/1432-11-0x0000023D05290000-0x0000023D05291000-memory.dmp

Filesize
4KB

Download
memory/1432-40-0x0000023D06E30000-0x0000023D06E40000-memory.dmp

Filesize
64KB

Download
memory/1432-39-0x0000023D06E20000-0x0000023D06E30000-memory.dmp

Filesize
64KB

Download
memory/1432-38-0x0000023D06E10000-0x0000023D06E20000-memory.dmp

Filesize
64KB

Download
memory/1432-37-0x0000023D06E00000-0x0000023D06E10000-memory.dmp

Filesize
64KB

Download
memory/1432-25-0x0000023D06E50000-0x0000023D06E60000-memory.dmp

Filesize
64KB

Download
memory/2692-82-0x0000018754050000-0x0000018754060000-memory.dmp

Filesize
64KB

Download
memory/2692-76-0x0000018753DB0000-0x0000018754020000-memory.dmp

Filesize
2.4MB

Download
memory/2692-60-0x0000018754030000-0x0000018754040000-memory.dmp

Filesize
64KB

Download
memory/2692-62-0x0000018754040000-0x0000018754050000-memory.dmp

Filesize
64KB

Download
memory/2692-66-0x0000018754060000-0x0000018754070000-memory.dmp

Filesize
64KB

Download
memory/2692-68-0x0000018754070000-0x0000018754080000-memory.dmp

Filesize
64KB

Download
memory/2692-65-0x0000018754050000-0x0000018754060000-memory.dmp

Filesize
64KB

Download
memory/2692-71-0x0000018754080000-0x0000018754090000-memory.dmp

Filesize
64KB

Download
memory/2692-73-0x0000018754090000-0x00000187540A0000-memory.dmp

Filesize
64KB

Download
memory/2692-74-0x00000187540A0000-0x00000187540B0000-memory.dmp

Filesize
64KB

Download
memory/2692-75-0x0000018753D90000-0x0000018753D91000-memory.dmp

Filesize
4KB

Download
memory/2692-58-0x0000018754020000-0x0000018754030000-memory.dmp

Filesize
64KB

Download
memory/2692-78-0x0000018754020000-0x0000018754030000-memory.dmp

Filesize
64KB

Download
memory/2692-79-0x0000018754030000-0x0000018754040000-memory.dmp

Filesize
64KB

Download
memory/2692-81-0x0000018754040000-0x0000018754050000-memory.dmp

Filesize
64KB

Download
memory/2692-47-0x0000018753DB0000-0x0000018754020000-memory.dmp

Filesize
2.4MB

Download
memory/2692-83-0x0000018754060000-0x0000018754070000-memory.dmp

Filesize
64KB

Download
memory/2692-84-0x0000018754070000-0x0000018754080000-memory.dmp

Filesize
64KB

Download
memory/2692-85-0x0000018754080000-0x0000018754090000-memory.dmp

Filesize
64KB

Download
memory/2692-86-0x0000018754090000-0x00000187540A0000-memory.dmp

Filesize
64KB

Download
memory/2692-87-0x00000187540A0000-0x00000187540B0000-memory.dmp

Filesize
64KB

Download