gh0strat | c07c011568614e3119d36a67fa208666c276f3500ca3ad1a156177c9e63cec70

General

Target

fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
Size

95KB
MD5

fc750f6c7b4c57b368e7c01aff4399ed
SHA1

eacd83ebf16c89c0f90f9399bacc3db273df058f
SHA256

c07c011568614e3119d36a67fa208666c276f3500ca3ad1a156177c9e63cec70
SHA512

e9b1ca25c6a7db5c59c518d804750d68555a60ee371609807014245484054687eac8fbc652b10665205b4733420d5e37619e693a20b5febaa735f49427382f19
SSDEEP

1536:aMJFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8priIQmwpd:aMfS4jHS8q/3nTzePCwNUh4E9iy0d

Score

10^/10

gh0strat bootkit persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

Processes:

resource	yara_rule
\??\c:\programdata\application data\storm\update\%sessionname%\ekxle.cc3	family_gh0strat
behavioral1/memory/2900-21-0x0000000000400000-0x000000000044C60F-memory.dmp	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
Deletes itself 1 IoCs

Processes:

hyffccrtmu

pid process

2900 hyffccrtmu
Executes dropped EXE 1 IoCs

Processes:

hyffccrtmu

pid process

2900 hyffccrtmu
Loads dropped DLL 3 IoCs

Processes:

fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exesvchost.exe

pid process

1920 fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
1920 fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
2760 svchost.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

svchost.exe

description ioc process

File opened for modification \??\PhysicalDrive0 svchost.exe
Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description ioc process

File created C:\Windows\SysWOW64\trmgawwrxq svchost.exe

pid	process
2900	hyffccrtmu

pid	process
2900	hyffccrtmu

pid	process
1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
2760	svchost.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	svchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\trmgawwrxq	svchost.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

Processes:

svchost.exe

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

Modifies data under HKEY_USERS 6 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

hyffccrtmusvchost.exe

pid process

2900 hyffccrtmu
2760 svchost.exe
2760 svchost.exe

pid	process
2900	hyffccrtmu
2760	svchost.exe
2760	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

hyffccrtmusvchost.exe

description	pid	process
Token: SeRestorePrivilege	2900	hyffccrtmu
Token: SeBackupPrivilege	2900	hyffccrtmu
Token: SeBackupPrivilege	2900	hyffccrtmu
Token: SeRestorePrivilege	2900	hyffccrtmu
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeRestorePrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeSecurityPrivilege	2760	svchost.exe
Token: SeSecurityPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeSecurityPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeSecurityPrivilege	2760	svchost.exe
Token: SeBackupPrivilege	2760	svchost.exe
Token: SeRestorePrivilege	2760	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe

description	pid	process	target process
PID 1920 wrote to memory of 2900	1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe	hyffccrtmu
PID 1920 wrote to memory of 2900	1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe	hyffccrtmu
PID 1920 wrote to memory of 2900	1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe	hyffccrtmu
PID 1920 wrote to memory of 2900	1920	fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe	hyffccrtmu

C:\Users\Admin\AppData\Local\Temp\fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1920

\??\c:\users\admin\appdata\local\hyffccrtmu
"C:\Users\Admin\AppData\Local\Temp\fc750f6c7b4c57b368e7c01aff4399ed_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\fc750f6c7b4c57b368e7c01aff4399ed_jaffacakes118.exe
2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2900

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2760

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\??\c:\programdata\application data\storm\update\%sessionname%\ekxle.cc3
Filesize
19.0MB

MD5
0216b414c03cf2d1de14d5ba23bc29b7

SHA1
1470f6acb4e748b30902c345a17034f66c691ba5

SHA256
3cae1ef8baa30b259bb594e4e144359fd5debcb057892b85de863b1f2aba2b0a

SHA512
5de12351e096b7e3dbea474e3da563801b37cdf90c9424c7d184212ef197c196ba920d9267c2747eb8c4da1079ecefc80f8377bcc8c400090c3b1d0626432a28

Download Submit
\Users\Admin\AppData\Local\hyffccrtmu
Filesize
23.7MB

MD5
c4ae09dafb26e37d79499b5ee4dbbb7e

SHA1
8b84bfa7072f6299e144e337e4ffb5aa68b250eb

SHA256
cf60902ea7af7d271094c257d7ba67c0489573c6cfae65fc58cdbb1576ba72a5

SHA512
975e7d3ef3d49401a9966c6bb6298c27fad3f55df7b693bcfee3fc2b650eea1c8103bfd2111343f89573e3c48202823923bf97227e425b1ff24ea4e203caef82

Download Submit
memory/1920-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1920-1-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/1920-12-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/1920-11-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/1920-24-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/2760-22-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2900-15-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/2900-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2900-21-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads