runningrat | 31d5bcd2e4ecd330a56fbef1826e7201532311c9a57ee44352a746ea8271a778

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7v20201028
submitted
11-02-2021 08:50

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General

Target

th520.exe
Size

96KB
MD5

fbbc4c6ce85624e7c35ce3f5ca988bbe
SHA1

346102549e0c1f9604266f8bda9f2fbd9ddf216b
SHA256

31d5bcd2e4ecd330a56fbef1826e7201532311c9a57ee44352a746ea8271a778
SHA512

c3fc14a7bbdedc1cfbda01d0e624d0ea6384427828c6cbff415bb2d5da5363d930a456e979f371f45835305f40d4b2a0a190c2355b624e042c4035ca6a067ded

Score

10^/10

runningrat persistence rat

Malware Config

Signatures

RunningRat
RunningRat is a remote access trojan first seen in 2018.
rat runningrat

Executes dropped EXE 1 IoCs

pid	Process
1288	SRDSL.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Loads dropped DLL 7 IoCs

pid	Process
528	th520.exe
1840	svchost.exe
1840	svchost.exe
1288	SRDSL.exe
1288	SRDSL.exe
1288	SRDSL.exe
1288	SRDSL.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
528	th520.exe
528	th520.exe
528	th520.exe
528	th520.exe
528	th520.exe
528	th520.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
528	th520.exe
528	th520.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 1288	1840	svchost.exe	31
PID 1840 wrote to memory of 1288	1840	svchost.exe	31
PID 1840 wrote to memory of 1288	1840	svchost.exe	31
PID 1840 wrote to memory of 1288	1840	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\th520.exe
"C:\Users\Admin\AppData\Local\Temp\th520.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:528

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:1856

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\users\admin\appdata\local\temp\259288356.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/528-2-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

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