gh0strat | 1e4873c6eb87a161fda91cbc2d3679ed32f3290240684316d25907f5fe63129e

General

Target

36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe
Size

760KB
MD5

36fb64e01dd35fa278ed552091326834
SHA1

649285f638fc84b63de10068e9f2ec4006a81099
SHA256

1e4873c6eb87a161fda91cbc2d3679ed32f3290240684316d25907f5fe63129e
SHA512

869d78c378c9132bfb25a56ee63e32f3ff842c55c2497f410a9b651934555109573f12a8f3d458a58d37bc52ec52c8bd6e10ad96b442d9e7490c254846510db9
SSDEEP

12288:SIj0cCW6PLHu/UVdi6vTYy/j6f34aBUrI0d4QAmxyu0w:1YcCDu4iNE6f+rI0EO

Score

10^/10

gh0strat discovery evasion persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1956-8-0x0000000000400000-0x00000000005A9000-memory.dmp	family_gh0strat
behavioral1/files/0x000b000000012029-10.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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 3 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{kedyfgnm-umaf-jjni-hmdk-qsafodcsfkzi}	userinit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{kedyfgnm-umaf-jjni-hmdk-qsafodcsfkzi}\ = "ÏµÍ³ÉèÖÃ"	userinit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{kedyfgnm-umaf-jjni-hmdk-qsafodcsfkzi}\stubpath	userinit.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	userinit.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	userinit.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	userinit.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	userinit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	userinit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe
1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2348	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2348	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2348	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2348	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2348	1956	36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\36fb64e01dd35fa278ed552091326834_JaffaCakes118.exe"
1⤵
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\userinit.exe
  userinit.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Loads dropped DLL
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\259434295_lang.dll

Filesize
114KB

MD5
389b60fcff5ed9fa1012691bc4ca52da

SHA1
ce8dbab3d6a79b1f913589499b9656cbfcda74eb

SHA256
e171d78ad7b7aeceba6eb89669e62ce0e94cbc27017bc822484bbe7c6f57fd59

SHA512
155d161fbf5a13b8d679c5830daa623f0a30792202ae7e8ba32985e46c78ca9a48b106d78e100b13fa10bf4d0d67e1c0a767dc81f21cc0201809b42a8e3019cc

Download Submit
memory/1956-0-0x0000000000400000-0x00000000005A9000-memory.dmp

Filesize
1.7MB

Download
memory/1956-3-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/1956-2-0x0000000004110000-0x0000000004111000-memory.dmp

Filesize
4KB

Download
memory/1956-1-0x0000000004100000-0x0000000004101000-memory.dmp

Filesize
4KB

Download
memory/1956-8-0x0000000000400000-0x00000000005A9000-memory.dmp

Filesize
1.7MB

Download
memory/2348-6-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads