runningrat | f9691a01efaeedd7d3f54e187feaaa6bc9274b3b5dd7ced1a278b64bf5c70051

Analysis

max time kernel
130s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
20/12/2022, 12:26

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General

Target

tmp.exe
Size

68KB
MD5

644fe0acc5058cf374c8a55640beaf41
SHA1

7cddf73833a860356065f9244f94b0b4fec68b1d
SHA256

f9691a01efaeedd7d3f54e187feaaa6bc9274b3b5dd7ced1a278b64bf5c70051
SHA512

af22dee14664e7966f354612a9d34fce64d5bda6699812c88c5f5685933e451c29e61613c83706a504e1c5452c2d9845a213860313cb5ac2943026fa495646ab
SSDEEP

768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMIRV:BHJaAoHoc2x7bZoYBAcQlwJdMt

Score

10^/10

runningrat persistence rat

Malware Config

Signatures

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

RunningRat payload 1 IoCs

resource	yara_rule
behavioral2/memory/760-132-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

Executes dropped EXE 1 IoCs

pid	Process
1492	SRDSL.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SRDSL\Parameters\ServiceDll = "C:\\Windows\\system32\\240542062.dll"	tmp.exe

Loads dropped DLL 4 IoCs

pid	Process
760	tmp.exe
760	tmp.exe
3456	svchost.exe
1492	SRDSL.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ini.ini	tmp.exe
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File created	C:\Windows\SysWOW64\240542062.dll	tmp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 1492	3456	svchost.exe	86
PID 3456 wrote to memory of 1492	3456	svchost.exe	86
PID 3456 wrote to memory of 1492	3456	svchost.exe	86

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:760

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:4240

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:3456
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\windows\system32\240542062.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1492

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

C:\Windows\SysWOW64\240542062.dll

Filesize
37KB

MD5
c83b9c15efcd8fd9360539854badfe6d

SHA1
08d8af0fd365296ac5b7e7049a7162aa224007f1

SHA256
14e9345ca0ffd967166f8f1937797a34db19e6b436a129e3fbf267ddc79fc7db

SHA512
c785c3c58910322abb9491b8b31e6b67d261b92f1264740583808ab50f6be3571a140eae9359903ca071401dd69af84470153dac80da53164e7a859b165ecbc3

Download Submit
C:\Windows\SysWOW64\240542062.dll

Filesize
37KB

MD5
c83b9c15efcd8fd9360539854badfe6d

SHA1
08d8af0fd365296ac5b7e7049a7162aa224007f1

SHA256
14e9345ca0ffd967166f8f1937797a34db19e6b436a129e3fbf267ddc79fc7db

SHA512
c785c3c58910322abb9491b8b31e6b67d261b92f1264740583808ab50f6be3571a140eae9359903ca071401dd69af84470153dac80da53164e7a859b165ecbc3

Download Submit
C:\Windows\SysWOW64\240542062.dll

Filesize
37KB

MD5
c83b9c15efcd8fd9360539854badfe6d

SHA1
08d8af0fd365296ac5b7e7049a7162aa224007f1

SHA256
14e9345ca0ffd967166f8f1937797a34db19e6b436a129e3fbf267ddc79fc7db

SHA512
c785c3c58910322abb9491b8b31e6b67d261b92f1264740583808ab50f6be3571a140eae9359903ca071401dd69af84470153dac80da53164e7a859b165ecbc3

Download Submit
C:\Windows\SysWOW64\240542062.dll

Filesize
37KB

MD5
c83b9c15efcd8fd9360539854badfe6d

SHA1
08d8af0fd365296ac5b7e7049a7162aa224007f1

SHA256
14e9345ca0ffd967166f8f1937797a34db19e6b436a129e3fbf267ddc79fc7db

SHA512
c785c3c58910322abb9491b8b31e6b67d261b92f1264740583808ab50f6be3571a140eae9359903ca071401dd69af84470153dac80da53164e7a859b165ecbc3

Download Submit
C:\Windows\SysWOW64\SRDSL.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Windows\SysWOW64\SRDSL.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
\??\c:\windows\SysWOW64\240542062.dll

Filesize
37KB

MD5
c83b9c15efcd8fd9360539854badfe6d

SHA1
08d8af0fd365296ac5b7e7049a7162aa224007f1

SHA256
14e9345ca0ffd967166f8f1937797a34db19e6b436a129e3fbf267ddc79fc7db

SHA512
c785c3c58910322abb9491b8b31e6b67d261b92f1264740583808ab50f6be3571a140eae9359903ca071401dd69af84470153dac80da53164e7a859b165ecbc3

Download Submit
memory/760-132-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/760-138-0x00000000008E0000-0x00000000008ED000-memory.dmp

Filesize
52KB

Download