gh0strat | a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83

General

Target

a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
Size

1.5MB
MD5

9da6a3e17c63fd40f9895f9a92b13532
SHA1

b21344b9cfce7776048b1fa6c6c7213e76c0c03a
SHA256

a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83
SHA512

afd99dbb068c8421380f0d8a7b6284f75a910fc4e86f4d3b87e360118107804d2ac7be31250f72b2cdd07939342d144fcfed9e320663b07f4d45d8a585baacd9
SSDEEP

24576:X09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+y:X09XJt4HIN2H2tFvduySQ

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1652-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1652-11-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1652-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3924-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3924-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3924-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3924-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2168-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2168-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2168-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2168-76-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/1652-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1652-11-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1652-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3924-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3924-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3924-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3924-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2168-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2168-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2168-47-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2168-76-0x0000000010000000-0x00000000101B6000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
1652	RVN.exe
3924	TXPlatforn.exe
2168	TXPlatforn.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1652-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1652-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1652-11-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1652-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3924-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3924-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3924-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3924-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3924-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2168-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2168-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2168-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2168-76-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RVN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.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
544	cmd.exe
4252	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4252	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2168	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1652	RVN.exe
Token: SeLoadDriverPrivilege	2168	TXPlatforn.exe
Token: 33	2168	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2168	TXPlatforn.exe
Token: 33	2168	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2168	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1036	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
1036	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 1652	1036	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe	82
PID 1036 wrote to memory of 1652	1036	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe	82
PID 1036 wrote to memory of 1652	1036	a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe	82
PID 1652 wrote to memory of 544	1652	RVN.exe	84
PID 1652 wrote to memory of 544	1652	RVN.exe	84
PID 1652 wrote to memory of 544	1652	RVN.exe	84
PID 3924 wrote to memory of 2168	3924	TXPlatforn.exe	85
PID 3924 wrote to memory of 2168	3924	TXPlatforn.exe	85
PID 3924 wrote to memory of 2168	3924	TXPlatforn.exe	85
PID 544 wrote to memory of 4252	544	cmd.exe	87
PID 544 wrote to memory of 4252	544	cmd.exe	87
PID 544 wrote to memory of 4252	544	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe
"C:\Users\Admin\AppData\Local\Temp\a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Users\Admin\AppData\Local\Temp\RVN.exe
  C:\Users\Admin\AppData\Local\Temp\\RVN.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1652
- - 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\RVN.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:544
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4252

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3924
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2168

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 Information Discovery

1

T1082

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
1.5MB

MD5
9da6a3e17c63fd40f9895f9a92b13532

SHA1
b21344b9cfce7776048b1fa6c6c7213e76c0c03a

SHA256
a18b9a1484b3f6bc65d98a6b018817fc909126974d56a82dfc7ca396796a4e83

SHA512
afd99dbb068c8421380f0d8a7b6284f75a910fc4e86f4d3b87e360118107804d2ac7be31250f72b2cdd07939342d144fcfed9e320663b07f4d45d8a585baacd9

Download Submit
C:\Users\Admin\AppData\Local\Temp\RVN.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1036-0-0x0000000000400000-0x000000000059C000-memory.dmp

Filesize
1.6MB

Download
memory/1036-98-0x0000000000400000-0x000000000059C000-memory.dmp

Filesize
1.6MB

Download
memory/1652-11-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1652-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1652-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1652-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2168-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2168-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2168-47-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2168-76-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3924-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3924-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3924-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3924-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3924-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads