gh0strat | 42028110d6e1320e031446bbdc585acb94a0c0147875a9dfc14c52f85792d5d9

General

Target

94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
Size

139KB
MD5

94bda1bbecf8314ccb0b7cac3bda7217
SHA1

d093a5ebf9d5c5f04d19e35d8a2f79bb1ea8f12e
SHA256

42028110d6e1320e031446bbdc585acb94a0c0147875a9dfc14c52f85792d5d9
SHA512

33c47d6f9aa7708586e7afe8e9ddf10a3db701100e120cae57184cd665c9afc961182fa914fae36db2404b85afafe4542383f90e0acc94b2c76294628efda48f
SSDEEP

3072:IVpbSWgMqqDa/QdMm97LHmfQJMtPVFS933s4tEtNiUe2jzWfg:kuIqqDGQd9/HmW6OgNiUBjCfg

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3584-0-0x0000000000400000-0x000000000041C000-memory.dmp	family_gh0strat
behavioral2/memory/3584-3-0x0000000000400000-0x000000000041C000-memory.dmp	family_gh0strat
behavioral2/memory/3584-4-0x0000000000400000-0x000000000041C000-memory.dmp	family_gh0strat
behavioral2/files/0x000800000002362d-8.dat	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Drivers\beep.sys	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Drivers\beep.sys	svchost.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibilityex.dll"	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
944	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
3584	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
944	svchost.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibilityex.dll	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
656	Process not Found
656	Process not Found

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91
PID 2956 wrote to memory of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91
PID 2956 wrote to memory of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91
PID 2956 wrote to memory of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91
PID 2956 wrote to memory of 3584	2956	94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\94bda1bbecf8314ccb0b7cac3bda7217_JaffaCakes118.exe"
  2⤵
  - Drops file in Drivers directory
  - Server Software Component: Terminal Services DLL
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3584

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility
1⤵
- Drops file in Drivers directory
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4404,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4400 /prefetch:8
1⤵
PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dll.tmp

Filesize
95KB

MD5
b4126f88ff4ac9e728eb23460dfb349e

SHA1
36088a3582d334c38704368081c2cd5e9e297a52

SHA256
3e0e3ec421c902866abd2bc59448e909b7ade329b262b27d70a7687e433cebd8

SHA512
cee41e7143e522c94d6c7a9e242340ef25d6b72c0f9ffcde0aabcd10c642838fbb923237ee4b51fcefedae57b3bf93e1b245b910303090c540394ced448e0646

Download Submit
C:\Windows\SysWOW64\install.tmp

Filesize
84B

MD5
e91e79c55f83e00281700c888021a2af

SHA1
fa3946160a019fbad5aabc1a5baff95c03dbf598

SHA256
53bb164c3495656efeb333105323326552ed82f382ca85261c1b4d62afc66e78

SHA512
6c5bb9153b8a75185262cf89667d6521e284c62b8f2e94e1a188679ad936f6a78c811a3352755397a062d9311803e247ff19fc86c35884e43d44e8aaffc54800

Download Submit
memory/2956-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3584-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3584-3-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3584-4-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download

Analysis

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