runningrat | bbe31a4ecad08a0cd9d895fcb01f6d2353d6e3a69a76c6d25ca0365eac810884

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29-04-2024 12:08

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General

Target

me.exe
Size

68KB
MD5

56ebc5ff9dece63f071cb0632a7cf43b
SHA1

50373327e5aee1719f7d7ba1387a2ac67abc7111
SHA256

bbe31a4ecad08a0cd9d895fcb01f6d2353d6e3a69a76c6d25ca0365eac810884
SHA512

d73b5399baf7ad66b00eea5c601a8aeb1d3900a9b345ede09796eb732be556e5b79a7dbd587fa7939e4986828a6846c782f9908dda528d0bc1d9d9fb6e0d5d39
SSDEEP

768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMI5V:BHJaAoHoc2x7bZoYBAcQlwJdMJ

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

Processes:

resource	yara_rule
behavioral2/memory/4620-0-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

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

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

me.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NETRUSDDL\Parameters\ServiceDll = "C:\\Windows\\system32\\240595328.dll"	me.exe

Executes dropped EXE 1 IoCs

Processes:

NETRUSDDL.exe

pid	Process
3908	NETRUSDDL.exe

Loads dropped DLL 4 IoCs

Processes:

me.exesvchost.exeNETRUSDDL.exe

pid	Process
4620	me.exe
4620	me.exe
4356	svchost.exe
3908	NETRUSDDL.exe

Drops file in System32 directory 4 IoCs

Processes:

me.exesvchost.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\240595328.dll	me.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	me.exe
File created	C:\Windows\SysWOW64\NETRUSDDL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\NETRUSDDL.exe	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

svchost.exe

description	pid	Process	procid_target
PID 4356 wrote to memory of 3908	4356	svchost.exe	88
PID 4356 wrote to memory of 3908	4356	svchost.exe	88
PID 4356 wrote to memory of 3908	4356	svchost.exe	88

C:\Users\Admin\AppData\Local\Temp\me.exe
"C:\Users\Admin\AppData\Local\Temp\me.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:4620

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "NETRUSDDL"
1⤵
PID:672

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "NETRUSDDL"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Windows\SysWOW64\NETRUSDDL.exe
  C:\Windows\system32\NETRUSDDL.exe "c:\windows\system32\240595328.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\240595328.dll

Filesize
37KB

MD5
4846bc2f230a559f16085f8f6539db14

SHA1
ebf67aa28742dc138d67cb66d31ff2f6c090e74a

SHA256
adba9413b442d6d0298cfa70acc38591e9b0fac7bc07e91d1dffc0962de90d1b

SHA512
861b184f39d80b81379e9781375d578fd40fdaa282b70f876300d1b58bbadd36d65630ce6e6d56c7e02f31276a3fd18c10362ab0e1be865cb97b3b0009270449

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/4620-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/4620-8-0x0000000002220000-0x000000000222D000-memory.dmp

Filesize
52KB

Download