gh0strat | 7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8

Analysis

max time kernel
176s
max time network
77s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-11-2022 14:04

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General

Target

7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe
Size

757KB
MD5

17a8ced7b6e0d1597c11436810c47630
SHA1

d6d919f6b5eee002ab03d5ad99bfba2faf4ebec3
SHA256

7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8
SHA512

7355284bc2b389708724a2b92358fa456335d99a13a3c3138dc0f071363d3e4ca50c22d736372763f175b7ca6b6f274d2063f7ff5c814004b23bbfcd06a7e7d7
SSDEEP

6144:QGzRxSVtp0l6whGfsKR+zkBpTaa5tJH7cHANUTNhGXc7nl/O:jt0VPFfsKAkrbPl7cHANUTNhGMA

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1248-58-0x0000000000400000-0x00000000004F1000-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
1248	(null)0.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a000000012326-56.dat	upx
behavioral1/memory/1248-58-0x0000000000400000-0x00000000004F1000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe"	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe
File opened for modification	\??\c:\Windows\BJ.exe	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe
File created	\??\c:\Windows\(null)0.exe	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1248	1672	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe	28
PID 1672 wrote to memory of 1248	1672	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe	28
PID 1672 wrote to memory of 1248	1672	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe	28
PID 1672 wrote to memory of 1248	1672	7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe	28

C:\Users\Admin\AppData\Local\Temp\7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe
"C:\Users\Admin\AppData\Local\Temp\7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1672
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:1248

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

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Downloads

C:\Windows\(null)0.exe

Filesize
757KB

MD5
17a8ced7b6e0d1597c11436810c47630

SHA1
d6d919f6b5eee002ab03d5ad99bfba2faf4ebec3

SHA256
7d45111be7ad9138ea4bffccee926b1c295aaa5ebbe3b667fb608d8394a9f5f8

SHA512
7355284bc2b389708724a2b92358fa456335d99a13a3c3138dc0f071363d3e4ca50c22d736372763f175b7ca6b6f274d2063f7ff5c814004b23bbfcd06a7e7d7

Download Submit
memory/1248-58-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1672-54-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1672-59-0x0000000002550000-0x0000000002641000-memory.dmp

Filesize
964KB

Download