gh0strat | 435fff1a152ee768f785c628917634c1b79f40c83b953ef51bd263b907b282c0

General

Target

2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe
Size

201KB
MD5

2a75dabc2a57cef8e28d51fa5b8846dc
SHA1

00598bf46fc2d03f07899f2f19ae532b0b6630e1
SHA256

435fff1a152ee768f785c628917634c1b79f40c83b953ef51bd263b907b282c0
SHA512

4b504c0d80f34e857150816a6d693f1050e8c7e85f89929a582d4428a2f67915efc28af22aaae1292a69f29efed74ec2b79678e0b0560f04775694dac605cb7e
SSDEEP

6144:WsIs6nW8Q3BTyPRqyhYPbHcTBlhHrGndnkI0W:bmW8hJq8YPbHcT3mV

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012118-2.dat	family_gh0strat
behavioral1/files/0x0009000000015d11-9.dat	family_gh0strat
behavioral1/memory/1736-12-0x0000000020000000-0x0000000020027000-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

Deletes itself 1 IoCs

pid	Process
2748	hxcbkmovtp

Executes dropped EXE 1 IoCs

pid	Process
2748	hxcbkmovtp

Loads dropped DLL 2 IoCs

pid	Process
2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe
1736	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\nirctvhmiy	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	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
2748	hxcbkmovtp
1736	svchost.exe
1736	svchost.exe
1736	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2748	hxcbkmovtp
Token: SeBackupPrivilege	2748	hxcbkmovtp
Token: SeBackupPrivilege	2748	hxcbkmovtp
Token: SeRestorePrivilege	2748	hxcbkmovtp
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeRestorePrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeSecurityPrivilege	1736	svchost.exe
Token: SeSecurityPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeSecurityPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeSecurityPrivilege	1736	svchost.exe
Token: SeBackupPrivilege	1736	svchost.exe
Token: SeRestorePrivilege	1736	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30
PID 2636 wrote to memory of 2748	2636	2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2636
- \??\c:\users\admin\appdata\local\hxcbkmovtp
  "C:\Users\Admin\AppData\Local\Temp\2a75dabc2a57cef8e28d51fa5b8846dc_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\2a75dabc2a57cef8e28d51fa5b8846dc_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2748

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
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1736

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\??\c:\programdata\drm\%sessionname%\ynfbd.cc3

Filesize
22.1MB

MD5
6a8b1ce885834434167d9addbf59b2b4

SHA1
53d66a6ef62615ae36c0b68e7d5f3603b4f550d3

SHA256
a5130778336364a352a6bcc061e2a0e91bd6a326f41c16949fd5e45d840778fb

SHA512
1729594069a26a2a045a6c3df7962c62a29f1e4fdea148ef7979559eb60e07d54b08ed71f41124f4049eb794f4a75981fcb9cbb6df633a82b2760f6a9ebd9c18

Download Submit
\Users\Admin\AppData\Local\hxcbkmovtp

Filesize
21.8MB

MD5
1963371852c13c5cecf679d8379031c2

SHA1
efd3e1883c26724810e90769fc7f366357b5c5d2

SHA256
35e2407151da02130e18e9534189fb7f1548a216aa459e40562e6800d6d6513d

SHA512
c0e656ed844142d286e9bd1587c4d8bfc1b9a39aaf9adc033edee8dffcb7bd2c8313f878558dc67fb6d67ebe62193300ab0d8af44aad3cc90a4511cd5235e8ad

Download Submit
memory/1736-11-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1736-12-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads