gh0strat | 9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b

Analysis

max time kernel
163s
max time network
52s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 09:47

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General

Target

9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe
Size

555KB
MD5

1fab526cb544c0bff2d8bf87cf1a5120
SHA1

57fd472683ad6d883d0b21f4228a6ed3bc7b7586
SHA256

9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b
SHA512

c582d93c44de635df2174c90161d6004b06ae408e4d0a42c671e37900a0eb4de9e2dcc70015260ef4a3a426c25ce44416f6258a44fe84067c62b321264d7f864
SSDEEP

12288:jt0VPFfsKAkrbPlXhHANUTNmHANUTtHANUTNo:SFksb11

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1776-59-0x0000000000400000-0x00000000004F1000-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

Executes dropped EXE 1 IoCs

pid	Process
1168	(null)0.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1776-54-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/files/0x000a00000001232a-57.dat	upx
behavioral1/memory/1776-59-0x0000000000400000-0x00000000004F1000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe"	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe
File opened for modification	\??\c:\Windows\BJ.exe	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe
File created	\??\c:\Windows\(null)0.exe	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 1168	1776	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe	28
PID 1776 wrote to memory of 1168	1776	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe	28
PID 1776 wrote to memory of 1168	1776	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe	28
PID 1776 wrote to memory of 1168	1776	9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe	28

C:\Users\Admin\AppData\Local\Temp\9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe
"C:\Users\Admin\AppData\Local\Temp\9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1776
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:1168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\(null)0.exe

Filesize
555KB

MD5
1fab526cb544c0bff2d8bf87cf1a5120

SHA1
57fd472683ad6d883d0b21f4228a6ed3bc7b7586

SHA256
9e1ac1e15ef5d49ef3d3c92760a52458d9f943ad5cbbc09eb774c95e83ae849b

SHA512
c582d93c44de635df2174c90161d6004b06ae408e4d0a42c671e37900a0eb4de9e2dcc70015260ef4a3a426c25ce44416f6258a44fe84067c62b321264d7f864

Download Submit
memory/1776-54-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1776-55-0x0000000075F01000-0x0000000075F03000-memory.dmp

Filesize
8KB

Download
memory/1776-59-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1776-60-0x00000000020E0000-0x00000000021D1000-memory.dmp

Filesize
964KB

Download