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
behavioral2/memory/3620-4-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral2/files/0x000c00000001e44f-8.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
3348	joocwb

Executes dropped EXE 1 IoCs

pid	Process
3348	joocwb

Loads dropped DLL 1 IoCs

pid	Process
436	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\flpklpxbpe	svchost.exe

Drops file in Program Files directory 1 IoCs

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

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_4fb88fbffa77c64f0de9334c63f3822b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	joocwb
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 8 IoCs

pid	Process
436	svchost.exe
436	svchost.exe
436	svchost.exe
436	svchost.exe
436	svchost.exe
436	svchost.exe
436	svchost.exe
436	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3620	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3348	joocwb
Token: SeBackupPrivilege	3348	joocwb
Token: SeBackupPrivilege	3348	joocwb
Token: SeRestorePrivilege	3348	joocwb
Token: SeBackupPrivilege	436	svchost.exe
Token: SeRestorePrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeSecurityPrivilege	436	svchost.exe
Token: SeSecurityPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeSecurityPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeSecurityPrivilege	436	svchost.exe
Token: SeBackupPrivilege	436	svchost.exe
Token: SeRestorePrivilege	436	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3620 wrote to memory of 3348	3620	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	90
PID 3620 wrote to memory of 3348	3620	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	90
PID 3620 wrote to memory of 3348	3620	JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fb88fbffa77c64f0de9334c63f3822b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3620
- \??\c:\users\admin\appdata\local\joocwb
  "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:3348

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "netsvcs" -s fastuserswitchingcompatibility
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:436

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\joocwb

Filesize
192KB

MD5
b2a6c538275569fa79920e399cacc92d

SHA1
a232ef5239d27416b9f3b582ca461cc7bde8bba4

SHA256
95a97018e1db81877de3fb971058e702039acacdafe26e3ade92d50acc85e4b7

SHA512
452fbf8f57d23a7230b20380dd6aa9e74de3743e3037b366635e1ede7971024ee6c5bb1fc4d8d515947e91448f14a8afba0d022ca37adf006ba5a8dbd0213c4b

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

Filesize
1.4MB

MD5
1f8fc5ceb6e798cfea30c0e12ed00683

SHA1
4938531674c34e24ade79b85047f222f67cc12e2

SHA256
97f5044b25e1982920df499042627b9ab5572a4cf406854dc0226f993f87db7c

SHA512
39ec33444bcea82ca01e991e5e412ab7f5493ad8b4f10427584dd6e7f1d3dd8d7826926c15d622aa81875e6dfac0442b366af4f68cc0d41bd7fd321ee04fe9e4

Download Submit
memory/3620-4-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads