gh0strat | 640582d2222bb18a52c19d6ba561f78466670016a633ec5409cda3bf10c56503

General

Target

JaffaCakes118_3d68e293144db83286830bed7414bc45.exe
Size

95KB
MD5

3d68e293144db83286830bed7414bc45
SHA1

ba2e6f90eb78eba487dbbf6a8505f2edd7f54111
SHA256

640582d2222bb18a52c19d6ba561f78466670016a633ec5409cda3bf10c56503
SHA512

70b6fece2e19afd4226a0c83d006989ef8bd57e4b5a1369dcbe4fcab3a356c2debfa5668d8881d0f2a30b4f865f53615881f1986909cd6422ac8f36dae4a6a23
SSDEEP

1536:QuJFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prEWnFY2UHHCssax:QufS4jHS8q/3nTzePCwNUh4E9E0W2mCm

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015f41-17.dat	family_gh0strat
behavioral1/memory/2836-19-0x0000000000400000-0x000000000044C60F-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

Deletes itself 1 IoCs

pid	Process
2836	hucqdbxyed

Executes dropped EXE 1 IoCs

pid	Process
2836	hucqdbxyed

Loads dropped DLL 2 IoCs

pid	Process
2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe
2548	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\gkgnradcwy	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hucqdbxyed

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 3 IoCs

pid	Process
2836	hucqdbxyed
2548	svchost.exe
2548	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2836	hucqdbxyed
Token: SeBackupPrivilege	2836	hucqdbxyed
Token: SeBackupPrivilege	2836	hucqdbxyed
Token: SeRestorePrivilege	2836	hucqdbxyed
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeRestorePrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeSecurityPrivilege	2548	svchost.exe
Token: SeSecurityPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeSecurityPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeSecurityPrivilege	2548	svchost.exe
Token: SeBackupPrivilege	2548	svchost.exe
Token: SeRestorePrivilege	2548	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_3d68e293144db83286830bed7414bc45.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d68e293144db83286830bed7414bc45.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d68e293144db83286830bed7414bc45.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- \??\c:\users\admin\appdata\local\hucqdbxyed
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d68e293144db83286830bed7414bc45.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_3d68e293144db83286830bed7414bc45.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2836

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:2548

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%\olpcy.cc3

Filesize
24.1MB

MD5
cf37fa64e5dc40c4685d9fe3aab6834c

SHA1
ff9d2b527daedf0b44e2bdbcda004e166fd4d3f5

SHA256
8333b0ab69e7b4793ef603772bde7437fbbb5aad8113e5240d2c9c3a19353c15

SHA512
9fab9099557bd8b4cf6ad16be69cb1d3dec57fbe0a388afdfb6bc528473ccd95a5f25152f78dab423fb3e6f457f4f188e1bc799c51f234a515b05f5a36e6db3c

Download Submit
\Users\Admin\AppData\Local\hucqdbxyed

Filesize
23.4MB

MD5
5d06ff6762387056e15283e32b3580d4

SHA1
4644b91a71c0f6ef607ee566c3c8d65c82db2672

SHA256
5c0d5fd255fec875b3ff40ef1e51514f3eea28287ec407b19d9b4b15937af12b

SHA512
43ea782b1d92918024d6a63d863f53b0624a74bda0b6a52f2dadc07b631366fb212a898c3e5958561c9ce71bd212af9018c502d9a266574032e9a288235e8f3e

Download Submit
memory/2548-20-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2672-0-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/2672-2-0x0000000000870000-0x00000000008BD000-memory.dmp

Filesize
308KB

Download
memory/2672-10-0x00000000007D0000-0x000000000081D000-memory.dmp

Filesize
308KB

Download
memory/2672-9-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/2672-21-0x00000000007D0000-0x000000000081D000-memory.dmp

Filesize
308KB

Download
memory/2836-13-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/2836-14-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2836-19-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads