gh0strat | 28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e

General

Target

28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe
Size

1.3MB
MD5

67c0befb496bddee9e9490968476312b
SHA1

11ef39fef9ed828ada619a87f4779ca637df9c5c
SHA256

28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e
SHA512

c64357f805e4f27ea5dafe3dadffaf515ee3d5134d773c5bf904686c9f5f412ce3212d8c71cd0e8e39d05560e154d4059f5ceb978906a45fc3e568b1b04210f4
SSDEEP

24576:9OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNXFyzhyz:wHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2944-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2944-0-0x0000000010000000-0x000000001019F000-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
Gh0strat family
gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

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 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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

Deletes itself 1 IoCs

pid	Process
2188	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
1444	sainbox.exe
2200	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
1444	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
2188	cmd.exe
2908	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2908	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2200	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2944	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe
Token: SeLoadDriverPrivilege	2200	sainbox.exe
Token: 33	2200	sainbox.exe
Token: SeIncBasePriorityPrivilege	2200	sainbox.exe
Token: 33	2200	sainbox.exe
Token: SeIncBasePriorityPrivilege	2200	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2188	2944	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe	32
PID 2944 wrote to memory of 2188	2944	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe	32
PID 2944 wrote to memory of 2188	2944	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe	32
PID 2944 wrote to memory of 2188	2944	28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe	32
PID 1444 wrote to memory of 2200	1444	sainbox.exe	33
PID 1444 wrote to memory of 2200	1444	sainbox.exe	33
PID 1444 wrote to memory of 2200	1444	sainbox.exe	33
PID 1444 wrote to memory of 2200	1444	sainbox.exe	33
PID 2188 wrote to memory of 2908	2188	cmd.exe	35
PID 2188 wrote to memory of 2908	2188	cmd.exe	35
PID 2188 wrote to memory of 2908	2188	cmd.exe	35
PID 2188 wrote to memory of 2908	2188	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe
"C:\Users\Admin\AppData\Local\Temp\28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944
- 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\28BF13~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2188
- - 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:2908

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\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:2200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

C:\Windows\SysWOW64\sainbox.exe

Filesize
1.3MB

MD5
67c0befb496bddee9e9490968476312b

SHA1
11ef39fef9ed828ada619a87f4779ca637df9c5c

SHA256
28bf1355f0c3cdaee8cc67a3ceff4c81fb79d0be2470ad2b0a6c6a833e8dbf4e

SHA512
c64357f805e4f27ea5dafe3dadffaf515ee3d5134d773c5bf904686c9f5f412ce3212d8c71cd0e8e39d05560e154d4059f5ceb978906a45fc3e568b1b04210f4

Download Submit
memory/2944-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads