gh0strat | 28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef

Analysis

max time kernel
165s
max time network
77s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 14:05

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General

Target

28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe
Size

695KB
MD5

01891c8e181249bb6f15261a139a7da0
SHA1

67c6fd6f41e385a291bee267afb77e99505d3f5d
SHA256

28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef
SHA512

31635685f2d4036e55d2c9e21c9a49ccbae3e50da14732150e7be00b3c06d3f1f52b1308c9fb18f4f52cc654704ac44bff427a352845710ea5c5baf7d6cd06f4
SSDEEP

12288:jt0VPFfsKAkrbPlXhHANUTNqmkajHANUTND:SFksb1AmkaD

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1188-61-0x0000000000400000-0x00000000004F1000-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
1188	(null)0.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2044-54-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/files/0x00090000000133ec-57.dat	upx
behavioral1/memory/1188-61-0x0000000000400000-0x00000000004F1000-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	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe"	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe
File created	\??\c:\Windows\BJ.exe	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe
File created	\??\c:\Windows\(null)0.exe	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 1188	2044	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe	28
PID 2044 wrote to memory of 1188	2044	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe	28
PID 2044 wrote to memory of 1188	2044	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe	28
PID 2044 wrote to memory of 1188	2044	28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe	28

C:\Users\Admin\AppData\Local\Temp\28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe
"C:\Users\Admin\AppData\Local\Temp\28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2044
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:1188

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
695KB

MD5
01891c8e181249bb6f15261a139a7da0

SHA1
67c6fd6f41e385a291bee267afb77e99505d3f5d

SHA256
28125357c09450e2d1448c11990df8f871fdfc0d404d3480919157381b1418ef

SHA512
31635685f2d4036e55d2c9e21c9a49ccbae3e50da14732150e7be00b3c06d3f1f52b1308c9fb18f4f52cc654704ac44bff427a352845710ea5c5baf7d6cd06f4

Download Submit
memory/1188-61-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2044-54-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2044-55-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download
memory/2044-59-0x0000000002840000-0x0000000002931000-memory.dmp

Filesize
964KB

Download
memory/2044-60-0x0000000002840000-0x0000000002931000-memory.dmp

Filesize
964KB

Download
memory/2044-62-0x0000000002840000-0x0000000002931000-memory.dmp

Filesize
964KB

Download