gh0strat | 53cdf65992d6d9746d57864e4ae91eff03700c493607948f63e4687dc9a2c54d

General

Target

JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe
Size

192KB
MD5

4fb88fbffa77c64f0de9334c63f3822b
SHA1

5a3c434345cb977442ad6588264632cdba641d66
SHA256

53cdf65992d6d9746d57864e4ae91eff03700c493607948f63e4687dc9a2c54d
SHA512

abf05a6bbfd2b28c297519ce4e50873797f7ccec02aca6c77f108387e0eb3d6d50e5c6f4203735c8097b1a4c6bc4c848307c40c88d0a2288ee373d29aa7b8596
SSDEEP

3072:5B1PFJunGnFQFT4zFcnH/+RHMX3UHA/Jrz4fgKcVKG7NDJAA0hVj1ZU5yJ:JPFJunGnOFT4mSsWqHF7QAM1q5g

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2220-8-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral1/files/0x0004000000018334-12.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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
2028	grqddi

Executes dropped EXE 1 IoCs

pid	Process
2028	grqddi

Loads dropped DLL 3 IoCs

pid	Process
2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe
2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe
2816	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\fcicafkpdf	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\StormII\dqook.biz	grqddi

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	grqddi
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.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	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
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2816	svchost.exe
2816	svchost.exe
2816	svchost.exe
2816	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2028	grqddi
Token: SeBackupPrivilege	2028	grqddi
Token: SeBackupPrivilege	2028	grqddi
Token: SeRestorePrivilege	2028	grqddi
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeRestorePrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeSecurityPrivilege	2816	svchost.exe
Token: SeSecurityPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeSecurityPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeSecurityPrivilege	2816	svchost.exe
Token: SeBackupPrivilege	2816	svchost.exe
Token: SeRestorePrivilege	2816	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2028	2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	29
PID 2220 wrote to memory of 2028	2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	29
PID 2220 wrote to memory of 2028	2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	29
PID 2220 wrote to memory of 2028	2220	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	29

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2220
- \??\c:\users\admin\appdata\local\grqddi
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe"a -s
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2028

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:2816

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:\Users\Admin\AppData\Local\grqddi

Filesize
192KB

MD5
6415da618cf4c6cffc82def04e331adb

SHA1
098babc4fd11a792aa00ca94316912ab04c01b4f

SHA256
efdd430d7eb0b208d1954858118c4080bc9997278511250018313417c06d7f06

SHA512
ead7dfa56110a1bf21a53eda637f076fdc91eac002c6e2903c655074f65582278a1594ea283f900f8ec58db3ead3ded6070f5bf90ce85372d94c82fae5b4a861

Download Submit
\??\c:\progra~2\stormii\dqook.biz

Filesize
916KB

MD5
25ff6435e012d707fb1fc7fd18e88356

SHA1
b8a459320095c61a276137998a379fc503766144

SHA256
f4eddd11b8481b4303ffbe502e3254772bfbf77e1a8e8eb4956b34cea442ea9b

SHA512
177884c5cc3f1fd59ccb458a2c820f82789f346b0232d5e6460eb6eec781e36e48aa0cb2590c89d30442317802172f88010a931e75ceb44c74c47c97e83df02b

Download Submit
memory/2220-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads