strrat | 52b7bf1e5830bfba28165d96c48dcdc21eb28e313e1f0f1bcc10378e38e06111

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/03/2024, 08:20

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General

Target

TEKLIF-ISTEME.jar
Size

64KB
MD5

42e3509850681ccff160078d391581b9
SHA1

be3a6011ad989c9328c72cf318f06cbfa499cd82
SHA256

52b7bf1e5830bfba28165d96c48dcdc21eb28e313e1f0f1bcc10378e38e06111
SHA512

0628f0a7c9b2b2a73103ef2c6be0d1a40f6c658a6418d324ca0e7fad24a3367de6df01a237516865e03b36bb47bbb0eb2a9cb71a509e6c3dc48ab70d96d9671d
SSDEEP

1536:s/LvDzcVMHH4xoLPM4qxtOPLfqA09xtRd3W4Ur:sLD1HYxGWtOPLfos4Ur

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\TEKLIF-ISTEME.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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\TEKLIF-ISTEME = "\"C:\\Program Files\\Java\\jre7\\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\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\TEKLIF-ISTEME.jar\""	java.exe

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/Job

T1053

pid	Process
2568	schtasks.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2796	2276	java.exe	29
PID 2276 wrote to memory of 2796	2276	java.exe	29
PID 2276 wrote to memory of 2796	2276	java.exe	29
PID 2276 wrote to memory of 2596	2276	java.exe	30
PID 2276 wrote to memory of 2596	2276	java.exe	30
PID 2276 wrote to memory of 2596	2276	java.exe	30
PID 2796 wrote to memory of 2568	2796	cmd.exe	31
PID 2796 wrote to memory of 2568	2796	cmd.exe	31
PID 2796 wrote to memory of 2568	2796	cmd.exe	31

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:\Windows\system32\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:2276
- 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:2796
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\TEKLIF-ISTEME.jar"
    3⤵
    - Creates scheduled task(s)
    PID:2568
- C:\Program Files\Java\jre7\bin\java.exe
  "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\TEKLIF-ISTEME.jar"
  2⤵
  PID:2596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

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

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

Filesize
64KB

MD5
42e3509850681ccff160078d391581b9

SHA1
be3a6011ad989c9328c72cf318f06cbfa499cd82

SHA256
52b7bf1e5830bfba28165d96c48dcdc21eb28e313e1f0f1bcc10378e38e06111

SHA512
0628f0a7c9b2b2a73103ef2c6be0d1a40f6c658a6418d324ca0e7fad24a3367de6df01a237516865e03b36bb47bbb0eb2a9cb71a509e6c3dc48ab70d96d9671d

Download Submit
memory/2276-8-0x0000000002610000-0x0000000005610000-memory.dmp

Filesize
48.0MB

Download
memory/2276-10-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/2276-30-0x0000000002610000-0x0000000005610000-memory.dmp

Filesize
48.0MB

Download
memory/2596-21-0x00000000025C0000-0x00000000055C0000-memory.dmp

Filesize
48.0MB

Download
memory/2596-28-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2596-31-0x00000000025C0000-0x00000000055C0000-memory.dmp

Filesize
48.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads