strrat | 3bc3579f84354fe3b51fd60254362bb523a76beb34adb1fa1cedd2b34dfbb61a

Analysis

max time kernel
72s
max time network
76s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
09-07-2023 08:19

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General

Target

PO7623jarjarjarjarjarjarj.jar
Size

70KB
MD5

0e3fdb5b619f6a39b6a6ea16cd930c97
SHA1

43a992927b4019290c7ce11fa0d8f4ac0913c063
SHA256

3bc3579f84354fe3b51fd60254362bb523a76beb34adb1fa1cedd2b34dfbb61a
SHA512

811dd76df42c9f8f290ffe0ae4c16963c62ff285fe68500c23292f36516e2beb90a152b567593e32e2f30b7c678fac89aab1b274e6c8376c96f7ee8c463b1ff7
SSDEEP

1536:2pFnNUl/6kMKiPIh9mnzxZxCJbyWxQX05oAhL7BN46ju5XFzvke:EFNw/6kMKuI9o47xQX0WAhL7I

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\PO7623jarjarjarjarjarjarj.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-1-5-21-1724861073-2584418204-2594431177-1000\Software\Microsoft\Windows\CurrentVersion\Run\PO7623jarjarjarjarjarjarj = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PO7623jarjarjarjarjarjarj.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PO7623jarjarjarjarjarjarj = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PO7623jarjarjarjarjarjarj.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

T1053

pid	Process
1744	schtasks.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 1972	1340	java.exe	30
PID 1340 wrote to memory of 1972	1340	java.exe	30
PID 1340 wrote to memory of 1972	1340	java.exe	30
PID 1340 wrote to memory of 1400	1340	java.exe	31
PID 1340 wrote to memory of 1400	1340	java.exe	31
PID 1340 wrote to memory of 1400	1340	java.exe	31
PID 1972 wrote to memory of 1744	1972	cmd.exe	32
PID 1972 wrote to memory of 1744	1972	cmd.exe	32
PID 1972 wrote to memory of 1744	1972	cmd.exe	32

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\PO7623jarjarjarjarjarjarj.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\system32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO7623jarjarjarjarjarjarj.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO7623jarjarjarjarjarjarj.jar"
    3⤵
    - Creates scheduled task(s)
    PID:1744
- C:\Program Files\Java\jre7\bin\java.exe
  "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\PO7623jarjarjarjarjarjarj.jar"
  2⤵
  PID:1400

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

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\PO7623jarjarjarjarjarjarj.jar

Filesize
70KB

MD5
0e3fdb5b619f6a39b6a6ea16cd930c97

SHA1
43a992927b4019290c7ce11fa0d8f4ac0913c063

SHA256
3bc3579f84354fe3b51fd60254362bb523a76beb34adb1fa1cedd2b34dfbb61a

SHA512
811dd76df42c9f8f290ffe0ae4c16963c62ff285fe68500c23292f36516e2beb90a152b567593e32e2f30b7c678fac89aab1b274e6c8376c96f7ee8c463b1ff7

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C:\Users\Admin\AppData\Roaming\PO7623jarjarjarjarjarjarj.jar

Filesize
70KB

MD5
0e3fdb5b619f6a39b6a6ea16cd930c97

SHA1
43a992927b4019290c7ce11fa0d8f4ac0913c063

SHA256
3bc3579f84354fe3b51fd60254362bb523a76beb34adb1fa1cedd2b34dfbb61a

SHA512
811dd76df42c9f8f290ffe0ae4c16963c62ff285fe68500c23292f36516e2beb90a152b567593e32e2f30b7c678fac89aab1b274e6c8376c96f7ee8c463b1ff7

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memory/1340-63-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads