gh0strat | 9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b

General

Target

9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe
Size

2.5MB
MD5

47f643d239aadb5baa496cdd37fad71e
SHA1

0c0c78f4e8ab9e74671bfc112da90b7ad4de7a3a
SHA256

9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b
SHA512

f47d748a39014f458b3b096f177cf111b85ac01bc6444b5a43044233b78dbc27f080127d8de63e29eaf43f1f9f0ab61fc7ee3e45fc6c2bb3d3227b80191519dc
SSDEEP

12288:JhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSaSHS:JUmwrl2Ao7sJNlM7ymsSal

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3576-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-12-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4680-21-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-29-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/3576-20-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/4680-39-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/3576-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4620-12-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4680-21-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/4620-29-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/3576-20-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/4680-39-0x0000000000400000-0x0000000000547000-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

Executes dropped EXE 2 IoCs

pid	Process
4620	sainbox.exe
4680	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3576-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x000c000000023b33-10.dat	upx
behavioral2/memory/4680-21-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/4620-29-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/3576-20-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/4680-39-0x0000000000400000-0x0000000000547000-memory.dmp	upx

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	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
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

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
2032	cmd.exe
1724	PING.EXE

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1724	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4680	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3576	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe
Token: SeLoadDriverPrivilege	4680	sainbox.exe
Token: 33	4680	sainbox.exe
Token: SeIncBasePriorityPrivilege	4680	sainbox.exe
Token: 33	4680	sainbox.exe
Token: SeIncBasePriorityPrivilege	4680	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 2032	3576	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe	84
PID 3576 wrote to memory of 2032	3576	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe	84
PID 3576 wrote to memory of 2032	3576	9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe	84
PID 4620 wrote to memory of 4680	4620	sainbox.exe	85
PID 4620 wrote to memory of 4680	4620	sainbox.exe	85
PID 4620 wrote to memory of 4680	4620	sainbox.exe	85
PID 2032 wrote to memory of 1724	2032	cmd.exe	87
PID 2032 wrote to memory of 1724	2032	cmd.exe	87
PID 2032 wrote to memory of 1724	2032	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe
"C:\Users\Admin\AppData\Local\Temp\9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3576
- 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\9A3B5D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2032
- - 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:1724

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620
- 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
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4680

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
2.5MB

MD5
47f643d239aadb5baa496cdd37fad71e

SHA1
0c0c78f4e8ab9e74671bfc112da90b7ad4de7a3a

SHA256
9a3b5d7b9160ce8dfc4c8ab124854186aedf85bfbb606b02a8f619bf0c88873b

SHA512
f47d748a39014f458b3b096f177cf111b85ac01bc6444b5a43044233b78dbc27f080127d8de63e29eaf43f1f9f0ab61fc7ee3e45fc6c2bb3d3227b80191519dc

Download Submit
memory/3576-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3576-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3576-20-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/4620-12-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4620-29-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/4680-21-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/4680-39-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads