gh0strat | 5a256b49d4ee4da4a463107250d8b7f231fff0d9139750606e1de5e2af6ee0c0

General

Target

JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
Size

117KB
MD5

319d95b84ba3cdb5bc5183d1bb4aef0e
SHA1

5c4e862a2ffed5fc1b12908fc09c6e3caa9d9779
SHA256

5a256b49d4ee4da4a463107250d8b7f231fff0d9139750606e1de5e2af6ee0c0
SHA512

853da06445640a2ccec3088f41f8a3e983b7282ec3766cc4d9006862c7b050ff67545212b125ae6d9fd3a9e4e291522d49fcdd0b99e94c8b649e43b4e4ea11e9
SSDEEP

3072:J7vQZBvHLukTbqB+KHDkgHRO72ATUFWPm:p4ZBvHLXTUTxObs

Score

10^/10

gh0strat bootkit discovery persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0018000000018657-3.dat	family_gh0strat
behavioral1/memory/2988-5-0x0000000000400000-0x0000000000435000-memory.dmp	family_gh0strat
behavioral1/memory/2104-6-0x0000000010000000-0x0000000010029000-memory.dmp	family_gh0strat
behavioral1/memory/2104-8-0x0000000010000000-0x0000000010029000-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

Loads dropped DLL 1 IoCs

pid	Process
2104	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\qekrhkqpjc	svchost.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral1/memory/2988-5-0x0000000000400000-0x0000000000435000-memory.dmp	upx

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	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
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\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
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2988	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
2104	svchost.exe
2104	svchost.exe
2104	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeRestorePrivilege	2988	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
Token: SeBackupPrivilege	2988	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
Token: SeBackupPrivilege	2988	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
Token: SeRestorePrivilege	2988	JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeRestorePrivilege	2104	svchost.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_319d95b84ba3cdb5bc5183d1bb4aef0e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2988

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:2104

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\360safe\%sessionname%\iyyfj.xm

Filesize
19.0MB

MD5
88db2b4d05a714ad23e25ddaccce542f

SHA1
6088d7b7c83fe3cea01a2bcdbd8b8c80b49afd39

SHA256
ccb7a7e6c1d770ea0be9626b463a0c568599151132316d5088e9b54c0e734586

SHA512
92e4592527216b454f92fa9f50c21967e680ad525310cf1e64a1a4afd1582b7af8018ae513c52c4c5303c0813a8a983b6942209d9fbef2108e7015a8b26e5052

Download Submit
memory/2104-6-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

Download
memory/2104-8-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

Download
memory/2988-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2988-5-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads