gh0strat | 1d984bdac19d032f40d585af52ec06b4a43404ee09062c7c48748fa257062681

General

Target

a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe
Size

96KB
MD5

a34238e589a5ffcc565d5b8ada3b6f3f
SHA1

0f0d670beff846bf81221540ad5bdf7ea172b289
SHA256

1d984bdac19d032f40d585af52ec06b4a43404ee09062c7c48748fa257062681
SHA512

7d8d955c658966de4d8760cfb2d3341c398f14806a729be715268a5a6039bfd22460321e0b687324ff32c6d3f19e441d304c050378874c7530aa2e83ac965348
SSDEEP

1536:pfFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pr5XW29c+:pJS4jHS8q/3nTzePCwNUh4E9Akc+

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016d89-19.dat	family_gh0strat
behavioral1/memory/1096-22-0x0000000000400000-0x000000000044E240-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

pid	Process
1096	ghrychqjuw

Executes dropped EXE 1 IoCs

pid	Process
1096	ghrychqjuw

Loads dropped DLL 3 IoCs

pid	Process
1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe
1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe
2356	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 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\voeacpgogf	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	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ghrychqjuw
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 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	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
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1096	ghrychqjuw
2356	svchost.exe
2356	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1096	ghrychqjuw
Token: SeBackupPrivilege	1096	ghrychqjuw
Token: SeBackupPrivilege	1096	ghrychqjuw
Token: SeRestorePrivilege	1096	ghrychqjuw
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeRestorePrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeSecurityPrivilege	2356	svchost.exe
Token: SeSecurityPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeSecurityPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeSecurityPrivilege	2356	svchost.exe
Token: SeBackupPrivilege	2356	svchost.exe
Token: SeRestorePrivilege	2356	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1096	1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe	30
PID 1624 wrote to memory of 1096	1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe	30
PID 1624 wrote to memory of 1096	1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe	30
PID 1624 wrote to memory of 1096	1624	a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- \??\c:\users\admin\appdata\local\ghrychqjuw
  "C:\Users\Admin\AppData\Local\Temp\a34238e589a5ffcc565d5b8ada3b6f3f_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\a34238e589a5ffcc565d5b8ada3b6f3f_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1096

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:2356

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%\yjmmj.cc3

Filesize
21.0MB

MD5
06c3d5b549202f99546ed06863f91716

SHA1
a03a655a1f2a73cf3b44bcd0d5c6e58f89951ea4

SHA256
407d9f2ea6724f9df85793fb9556ebe5aeb6c59ea2fc426c67198b6c4ecc1767

SHA512
1464e0f465f1dee460de3f713a3d515b0bcbac8cc4d0738b0bc5b4740c811b1e4c241d97d9409f7e49d9949e63285151e5cd7b8a9f62e0d6215c76e30c0c4831

Download Submit
\Users\Admin\AppData\Local\ghrychqjuw

Filesize
20.7MB

MD5
834001e8877dc244d8afa648218fe982

SHA1
ca206675f77b2164db2c2d7832f8679b3ed43022

SHA256
8f542e24392088907e5b6a6700b2865aaf7fd90e6f1c67d27f3572578775b471

SHA512
5d8d8db3004468b85ad7af4544156fbfbd04208681f7fc36a455e2fe00da71af1517b57bbb37e43b59456f932a766dddcc00d336d45e5324770c9a55d8d9518d

Download Submit
memory/1096-15-0x0000000000400000-0x000000000044E240-memory.dmp

Filesize
312KB

Download
memory/1096-22-0x0000000000400000-0x000000000044E240-memory.dmp

Filesize
312KB

Download
memory/1624-0-0x0000000000400000-0x000000000044E240-memory.dmp

Filesize
312KB

Download
memory/1624-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1624-7-0x0000000000280000-0x00000000002CF000-memory.dmp

Filesize
316KB

Download
memory/1624-14-0x0000000000400000-0x000000000044E240-memory.dmp

Filesize
312KB

Download
memory/2356-23-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads