gh0strat | 26dddc8ae271f9b3380ba305bebdd0ee09707aae532d0477144bf6d2fe4e9092

General

Target

JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe
Size

95KB
MD5

45fe5b239474835e0d53895c4e793b73
SHA1

81a511f0a6bafb517753b13595529b1cf8ebbda8
SHA256

26dddc8ae271f9b3380ba305bebdd0ee09707aae532d0477144bf6d2fe4e9092
SHA512

2fba49ada2016e684fcc416f5e51da0d202b9281d6a600e5021bff42493b7dea9221b33bc7049d1a5eb14035c0af4e392cd6fe61d6bff17f5da1f2279c25816b
SSDEEP

1536:iRFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prOcOj9:iHS4jHS8q/3nTzePCwNUh4E9o9

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000900000001748f-19.dat	family_gh0strat
behavioral1/memory/1748-22-0x0000000000400000-0x000000000044E35C-memory.dmp	family_gh0strat
behavioral1/memory/2364-25-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2364-27-0x0000000020000000-0x0000000020027000-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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
1748	iheepvgybc

Executes dropped EXE 1 IoCs

pid	Process
1748	iheepvgybc

Loads dropped DLL 3 IoCs

pid	Process
2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe
2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe
2364	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\akiuwdpklt	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	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iheepvgybc
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	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1748	iheepvgybc
2364	svchost.exe
2364	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1748	iheepvgybc
Token: SeBackupPrivilege	1748	iheepvgybc
Token: SeBackupPrivilege	1748	iheepvgybc
Token: SeRestorePrivilege	1748	iheepvgybc
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeRestorePrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeSecurityPrivilege	2364	svchost.exe
Token: SeSecurityPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeSecurityPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeSecurityPrivilege	2364	svchost.exe
Token: SeBackupPrivilege	2364	svchost.exe
Token: SeRestorePrivilege	2364	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 1748	2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe	30
PID 2972 wrote to memory of 1748	2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe	30
PID 2972 wrote to memory of 1748	2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe	30
PID 2972 wrote to memory of 1748	2972	JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- \??\c:\users\admin\appdata\local\iheepvgybc
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45fe5b239474835e0d53895c4e793b73.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_45fe5b239474835e0d53895c4e793b73.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748

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:2364

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%\mfvlm.cc3

Filesize
20.1MB

MD5
a6fc8c270369587f2234aa3af0263302

SHA1
27ce0e1be2ee292e149fc0e6959154311c485cad

SHA256
0b0f531e4d8335787c5c981ce768d24053fb648d6cdfc30d6bb61e7fc509285e

SHA512
9c8c0c17e360f6696d2e3cdf459252f8a8f232354cb8d66e10f99ed65645376a8461ad05afb0dceafec2af84816a5b3c6564aafeb737d7df78eef23883e62ca8

Download Submit
\Users\Admin\AppData\Local\iheepvgybc

Filesize
23.6MB

MD5
64385a2c77a03629795a51ac441079f0

SHA1
6e74d2a31c9b17edcf001bf511f2e1b630c4d2fe

SHA256
d816e1165551b3a603546ebf41fa3b0af3ed621f9248110ba82b71e28a4cd83f

SHA512
5ff9cfe2943ff40e90ec4107c23eef853720a7b035321762d37ed5e26e43b8db6c7533357f47a8196669783dd74a16c31bb3836ce626441846674c18041d8814

Download Submit
memory/1748-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1748-15-0x0000000000400000-0x000000000044E35C-memory.dmp

Filesize
312KB

Download
memory/1748-22-0x0000000000400000-0x000000000044E35C-memory.dmp

Filesize
312KB

Download
memory/2364-23-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2364-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2364-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2972-1-0x0000000000400000-0x000000000044E35C-memory.dmp

Filesize
312KB

Download
memory/2972-2-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2972-12-0x0000000000400000-0x000000000044E35C-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads