gh0strat | 56a2a088cf33ab175f32a1de3b3a0d49c2b058fd7210231958f3f3341b1c7113

General

Target

JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
Size

96KB
MD5

4dd3698bc5d4fc10234127291e5afa7c
SHA1

db1ed73bc14463f6a9d55b9bc66dc78827fb72e1
SHA256

56a2a088cf33ab175f32a1de3b3a0d49c2b058fd7210231958f3f3341b1c7113
SHA512

985106aa01c0477cb8ecd6b6356454181c0ed20a0649b81ab35c55d40a1d98d02d7d437bd0a7c11688174426d38105d1f30b88105ddfe9a66cdd81fc5b70422e
SSDEEP

3072:OYS4jHS8q/3nTzePCwNUh4E9SQbrh2B3ifb:OT428q/nTzePCwG7d6S

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016dbe-18.dat	family_gh0strat
behavioral1/memory/2744-20-0x0000000000400000-0x000000000044E2EC-memory.dmp	family_gh0strat
behavioral1/memory/2792-23-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2792-25-0x0000000020000000-0x0000000020027000-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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
2744	gsdhivniyq

Executes dropped EXE 1 IoCs

pid	Process
2744	gsdhivniyq

Loads dropped DLL 3 IoCs

pid	Process
2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
2792	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

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\pykcuyubxg	svchost.exe
File created	C:\Windows\SysWOW64\pqvjnvrdkl	svchost.exe

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	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gsdhivniyq
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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

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

description	ioc	Process
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
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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2744	gsdhivniyq
2792	svchost.exe
2792	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2744	gsdhivniyq
Token: SeBackupPrivilege	2744	gsdhivniyq
Token: SeBackupPrivilege	2744	gsdhivniyq
Token: SeRestorePrivilege	2744	gsdhivniyq
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeRestorePrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeSecurityPrivilege	2792	svchost.exe
Token: SeSecurityPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeSecurityPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeSecurityPrivilege	2792	svchost.exe
Token: SeBackupPrivilege	2792	svchost.exe
Token: SeRestorePrivilege	2792	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2744	2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe	31
PID 2196 wrote to memory of 2744	2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe	31
PID 2196 wrote to memory of 2744	2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe	31
PID 2196 wrote to memory of 2744	2196	JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- \??\c:\users\admin\appdata\local\gsdhivniyq
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4dd3698bc5d4fc10234127291e5afa7c.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_4dd3698bc5d4fc10234127291e5afa7c.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744

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
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\programdata\application data\storm\update\%sessionname%\tsfey.cc3

Filesize
24.0MB

MD5
2fa2712e5bd4d46b3041f1ae36393cde

SHA1
326c7ddbbd94af39e95c55c82689708c8cf2adfa

SHA256
7fc94b83480cc404f9e45384774514939eb857529780b7e2532171d166b06835

SHA512
bf4ca8fa6badc4c98f6802e44ee872d9ae66e0518c67b7bc8024745ac040d4bd92bd3ee810fd79d5e80eb2f54ffbadcf66e64405cf0568eace62bae39a208ad8

Download Submit
\Users\Admin\AppData\Local\gsdhivniyq

Filesize
21.5MB

MD5
773924d18e8858de39135c2895e59035

SHA1
96214a7fc420bb57f6c68d353232705049b431eb

SHA256
75b998be1873cdd90cfe565b967bc23eeac60dd91056f4e3dce240c3e2914081

SHA512
0856ba8df5315f8800fc3de0b9f699cdb05affb482a864edba1e0897e85dc2be639b65749695a837824ed5be60e126d6ec6ccfc7c77e67d95b40d22ddf19e17d

Download Submit
memory/2196-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/2196-11-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/2744-13-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/2744-15-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2744-20-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/2792-21-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/2792-23-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2792-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads