gh0strat | d2efaa5e7e261e78cc4be7f1a61060376d7daa0e7439041095986003622bdf5a

General

Target

a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
Size

125KB
MD5

a8aeae65fd08256815f189b89cfb680d
SHA1

994e4b5d3f1af1acf5c99d2e68433124c335cce3
SHA256

d2efaa5e7e261e78cc4be7f1a61060376d7daa0e7439041095986003622bdf5a
SHA512

13c05371c68c3fe0fda09ccbe3a1a189b1f5e9a5cbc23fadeff68020853d78fc5c409e8795aba67f1d25aa884c980dab8701410d2e6b79363fcafced92018ef7
SSDEEP

3072:S3hHxyQvVwpG1b2j7ChrzMDvih7laMPoFtdJK1:S5xyQvVwpGt23ChrAmhxBitdA

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2468-0-0x0000000000400000-0x0000000000422000-memory.dmp	family_gh0strat
behavioral1/files/0x000c000000014968-15.dat	family_gh0strat
behavioral1/memory/2840-17-0x0000000010000000-0x000000001001D000-memory.dmp	family_gh0strat
behavioral1/memory/2812-18-0x0000000000400000-0x0000000000422000-memory.dmp	family_gh0strat
behavioral1/memory/2468-20-0x0000000000400000-0x0000000000422000-memory.dmp	family_gh0strat
behavioral1/memory/2840-21-0x0000000010000000-0x000000001001D000-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

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\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibilityapi.dll"	REO0.exe

Deletes itself 1 IoCs

pid	Process
2840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1300	REO0.exe

Loads dropped DLL 4 IoCs

pid	Process
2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
1300	REO0.exe
1300	REO0.exe
2840	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibilityapi.dll	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\REO0.exe	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\REO0.exe	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.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	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REO0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2468 wrote to memory of 2812	2468	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	29
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1300	2812	a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Users\Admin\AppData\Local\Temp\a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a8aeae65fd08256815f189b89cfb680d_JaffaCakes118.exe
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\REO0.exe
    REO0 ADD HKEY_LOCAL_MACHINE\system\currentcontrolset\services\FastUserSwitchingCompatibility\Parameters /v ServiceDll /t REG_EXPAND_SZ /d "C:\Windows\system32\FastUserSwitchingCompatibilityapi.dll" /f
    3⤵
    - Server Software Component: Terminal Services DLL
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1300

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2840

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

\??\c:\windows\SysWOW64\fastuserswitchingcompatibilityapi.dll

Filesize
10.1MB

MD5
a6b241d1c8494e6ee502417bd4940e21

SHA1
dda05d2690ecc0536702cc8a0f16e41a41ce4507

SHA256
19675c4c736affb44d96450f835e8fa0b7acde6f6e35d260268b75f5eab5cb2b

SHA512
2f875e6ea06115d816af3806a2d711b5e1c3b8669dbe708cce6f474851dc41d9e03a1233ddf48f29e557f36a03a2f4626d4e4f44a559356f2c3d8d3a6ce66e19

Download Submit
\Windows\SysWOW64\REO0.exe

Filesize
61KB

MD5
d69a9abbb0d795f21995c2f48c1eb560

SHA1
8bd131b03d6ba865b228ca8ee3239d2ef2b90b74

SHA256
36414c7e57afa6136d77fd47f4c55102e35f2475fbcd719728da7d14b1590e2a

SHA512
06421bb7a363e938ef7d15c44bce9c92004df957f64652d4288246b229bdd61a39997fda40c999e601c87054c3fe12c5fbef4f6b11420cd08b8a5fe84c9be5b8

Download Submit
memory/2468-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2468-3-0x00000000001D0000-0x00000000001F2000-memory.dmp

Filesize
136KB

Download
memory/2468-2-0x00000000001C0000-0x00000000001E2000-memory.dmp

Filesize
136KB

Download
memory/2468-1-0x00000000001C0000-0x00000000001E2000-memory.dmp

Filesize
136KB

Download
memory/2468-20-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2812-18-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2812-19-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/2840-17-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download
memory/2840-21-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download

Analysis

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