gh0strat | 94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3

General

Target
94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe
Size 10.5MB
Sample260718-mdafnsf18m
SHA256 94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3
MD5 4d638a081c8031bee1e72492260c08d0
SHA1 0754f15d97d42fcdbc34d776fe6475238d8bf9b0
SHA512 c0205d2a60096f0718183a3aaff1869ca6affb346f305e334cd4d5b05de28ddd3e5143fa7a7f04a38ab77e2bf948d2ebe6027b75de8523ace1d8303c619aec40
SSDEEP 12288:KhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSTL:KUmwrl2Ao7sJNlM7ymsSn
TLSH
T13EB6CFB50B7A7C48E0410098965908CC71F8D5CF7A1E5D24EA7E9793EEAE13C18B17BE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Family: 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
Family: PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4364-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/5536-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4364-15-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/5536-22-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2764-34-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4364-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/5536-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4364-15-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/5536-22-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2764-34-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	sainbox.exe

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	sainbox.exe

Executes dropped EXE 2 IoCs

pid	Process
5536	sainbox.exe
2764	sainbox.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4364-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x000c00000001c619-7.dat	upx
behavioral2/memory/4364-15-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/5536-22-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2764-34-0x0000000000400000-0x0000000000547000-memory.dmp	upx

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4424	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4424	cmd.exe
3484	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3484	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2764	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4364	94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe
Token: SeLoadDriverPrivilege	2764	sainbox.exe
Token: 33	2764	sainbox.exe
Token: SeIncBasePriorityPrivilege	2764	sainbox.exe
Token: 33	2764	sainbox.exe
Token: SeIncBasePriorityPrivilege	2764	sainbox.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 4424	4364	94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe	91
PID 5536 wrote to memory of 2764	5536	sainbox.exe	92
PID 4424 wrote to memory of 3484	4424	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe
"C:\Users\Admin\AppData\Local\Temp\94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4364
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\94025A~1.EXE > nul
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3484

C:\ProgramData\Application Data\Storm\update\sainbox.exe
"C:\ProgramData\Application Data\Storm\update\sainbox.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5536
- C:\ProgramData\Application Data\Storm\update\sainbox.exe
  "C:\ProgramData\Application Data\Storm\update\sainbox.exe" -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2764

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

sainbox.exe

Path C:\ProgramData\Storm\update\sainbox.exe
Size 10.5MB
SHA256 94025adc1dc2bfa15c68740de781aeaab36fd2342f56b190efcf35eacb2489c3
MD5 4d638a081c8031bee1e72492260c08d0
SHA1 0754f15d97d42fcdbc34d776fe6475238d8bf9b0
SHA512 c0205d2a60096f0718183a3aaff1869ca6affb346f305e334cd4d5b05de28ddd3e5143fa7a7f04a38ab77e2bf948d2ebe6027b75de8523ace1d8303c619aec40
SSDEEP 12288:KhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSTL:KUmwrl2Ao7sJNlM7ymsSn
TLSH
T13EB6CFB50B7A7C48E0410098965908CC71F8D5CF7A1E5D24EA7E9793EEAE13C18B17BE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2764-34-0x0000000000400000-0x0000000000547000-memory.dmp

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memory/4364-0-0x0000000000400000-0x0000000000547000-memory.dmp

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memory/4364-1-0x0000000010000000-0x000000001019F000-memory.dmp

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memory/4364-15-0x0000000000400000-0x0000000000547000-memory.dmp

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memory/5536-10-0x0000000010000000-0x000000001019F000-memory.dmp

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memory/5536-22-0x0000000000400000-0x0000000000547000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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