runningrat | ac1b378f8477373ead4d963382c446c9e00c284e42cd6189a373a520dabcaf45

Analysis

max time kernel
146s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-12-2023 13:02

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General

Target

xghk.exe
Size

68KB
MD5

23ae5b23ad69d731d7a80dd015aea3b9
SHA1

20b4f3d184e9772e2b38ce5e98c800ddb4bf18db
SHA256

ac1b378f8477373ead4d963382c446c9e00c284e42cd6189a373a520dabcaf45
SHA512

aaba2adf105528a5d41953de986bcf3e6db629043d457fb5933e1bf7017ce6c4631b14631e58deb31443061bcd47bc0651002142f2288c1f6ac88fb03b9c34fc
SSDEEP

768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMIVV:BHJaAoHoc2x7bZoYBAcQlwJdMB

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
behavioral1/memory/1932-0-0x0000000010000000-0x000000001000F000-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:

xghk.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\NETRUDDLGSVC\Parameters\ServiceDll = "C:\\Windows\\system32\\259406231.dll"	xghk.exe

Executes dropped EXE 1 IoCs

Processes:

NETRUDDLGSVC.exe

pid	Process
2800	NETRUDDLGSVC.exe

Loads dropped DLL 7 IoCs

Processes:

xghk.exesvchost.exeNETRUDDLGSVC.exe

pid	Process
1932	xghk.exe
2776	svchost.exe
2776	svchost.exe
2800	NETRUDDLGSVC.exe
2800	NETRUDDLGSVC.exe
2800	NETRUDDLGSVC.exe
2800	NETRUDDLGSVC.exe

Drops file in System32 directory 4 IoCs

Processes:

svchost.exexghk.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\NETRUDDLGSVC.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\NETRUDDLGSVC.exe	svchost.exe
File created	C:\Windows\SysWOW64\259406231.dll	xghk.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	xghk.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

svchost.exe

description	pid	Process	procid_target
PID 2776 wrote to memory of 2800	2776	svchost.exe	30
PID 2776 wrote to memory of 2800	2776	svchost.exe	30
PID 2776 wrote to memory of 2800	2776	svchost.exe	30
PID 2776 wrote to memory of 2800	2776	svchost.exe	30

C:\Users\Admin\AppData\Local\Temp\xghk.exe
"C:\Users\Admin\AppData\Local\Temp\xghk.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1932

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "NETRUDDLGSVC"
1⤵
PID:1060

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "NETRUDDLGSVC"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\NETRUDDLGSVC.exe
  C:\Windows\system32\NETRUDDLGSVC.exe "c:\windows\system32\259406231.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2800

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

\Windows\SysWOW64\259406231.dll

Filesize
37KB

MD5
6817eedcc8314656344d980a6946d38f

SHA1
8da125b25c10f5f70d4b2b7419559857633516b9

SHA256
c4773676e43373d77c7812e789a9bd7163df7299f0845cb2eb3adac083476e52

SHA512
21b101528ec72cfc979e7920681012f2307daec39f974f21900dd28b09df08643b4745a9f14d1b61f53ca72dffa1e11a9e2fd4250f6e9462e4ef42a907067ad4

Download Submit
\Windows\SysWOW64\NETRUDDLGSVC.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1932-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/1932-6-0x00000000002D0000-0x00000000002DD000-memory.dmp

Filesize
52KB

Download