gh0strat | a7ab175570c31186f5f64e5940701d831225fe87f556968fd8db29f330da6462

General

Target

JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe
Size

148KB
MD5

64f37b627cfb958ca6ec41a6dbea4ecd
SHA1

f77591b61c47dcb081f485c68113b28e494b43b2
SHA256

a7ab175570c31186f5f64e5940701d831225fe87f556968fd8db29f330da6462
SHA512

40b2dea7fad423584fcdbf945760c2e681f1113fcb39c2e60ca74a56244a50cb2aaeb1108ee7c0bf606d18f3607df4e25ccec87d7ca650c492a60034e7b6af09
SSDEEP

3072:ynPq548DY50gePA/UHMd77OUKa+fB5dnUNSYVsqWaSN7hB3Zc:yPq5v/PY8YOUPG5x+Sasq4phFZc

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	family_gh0strat
behavioral1/memory/2652-7-0x0000000010000000-0x0000000010020000-memory.dmp	family_gh0strat
behavioral1/memory/1796-8-0x0000000010000000-0x0000000010020000-memory.dmp	family_gh0strat
behavioral1/memory/2656-9-0x0000000010000000-0x0000000010020000-memory.dmp	family_gh0strat
behavioral1/memory/2656-13-0x0000000010000000-0x0000000010020000-memory.dmp	family_gh0strat
behavioral1/memory/2656-19-0x0000000010000000-0x0000000010020000-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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\FreeRats\Parameters\ServiceDll = "C:\\Windows\\system32\\FreeRats.dll"	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2496	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	svchost.exe
File opened for modification	C:\Windows\SysWOW64\FreeRats.ini	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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_64f37b627cfb958ca6ec41a6dbea4ecd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2652	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	30
PID 1796 wrote to memory of 2496	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	33
PID 1796 wrote to memory of 2496	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	33
PID 1796 wrote to memory of 2496	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	33
PID 1796 wrote to memory of 2496	1796	JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64f37b627cfb958ca6ec41a6dbea4ecd.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\FreeRats.dll setup
  2⤵
  - Server Software Component: Terminal Services DLL
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2496

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\Server.tmp

Filesize
124KB

MD5
85993711a184f383b950db19671239ef

SHA1
86afd6c7a561667793816210332d3046af41a7cd

SHA256
962197dc14ae32ec4955808c6224f730fe45eb934166d5170e2de697fbd32367

SHA512
035e55c16478002f294e91e2406c05f6c5b7bef3efcb021b41794eb3c01d1e612e065513f3f525f9934fbabad031747a335903e81e8c7919f3e568e7775dbed6

Download Submit
memory/1796-8-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2652-7-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2656-9-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2656-13-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2656-19-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download

Analysis

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