gh0strat | 4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b

General

Target

4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
Size

1.7MB
MD5

d287a0aca64c340c5b9b0bdce201f233
SHA1

d43f1abbae2cfc9616c55ba2a069bbed2981200d
SHA256

4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b
SHA512

0b43cb5ea7aaa2a35288d75f5bf02baac7a22a297e524c773f4ad4ae90180fdf5800f4452ce10dcdd3db2e7473aff469745f489e24a58fcf1942dacdf2e2bedd
SSDEEP

24576:BQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVMluvqkFM4Y+WN5mmT7KT:BQZAdVyVT9n/Gg0P+WhozluvkvfKT

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2220-12-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2220-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2696-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1988-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2696-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1988-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1988-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1988-74-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/2220-12-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2220-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2696-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1988-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2696-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1988-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0007000000016d0b-39.dat	family_gh0strat
behavioral1/memory/1988-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1988-74-0x0000000010000000-0x00000000101B6000-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 4 IoCs

pid	Process
2220	svchost.exe
2696	TXPlatforn.exe
1988	TXPlatforn.exe
2576	svchos.exe

Loads dropped DLL 4 IoCs

pid	Process
1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
2696	TXPlatforn.exe
1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
2576	svchos.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2696-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1988-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2696-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1988-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1988-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1988-74-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259413906.txt	svchos.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.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 6 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	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.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
2824	cmd.exe
3020	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3020	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1988	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2220	svchost.exe
Token: SeLoadDriverPrivilege	1988	TXPlatforn.exe
Token: 33	1988	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1988	TXPlatforn.exe
Token: 33	1988	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1988	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 1924 wrote to memory of 2220	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	30
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 2696 wrote to memory of 1988	2696	TXPlatforn.exe	33
PID 1924 wrote to memory of 2576	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	34
PID 1924 wrote to memory of 2576	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	34
PID 1924 wrote to memory of 2576	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	34
PID 1924 wrote to memory of 2576	1924	4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe	34
PID 2824 wrote to memory of 3020	2824	cmd.exe	36
PID 2824 wrote to memory of 3020	2824	cmd.exe	36
PID 2824 wrote to memory of 3020	2824	cmd.exe	36
PID 2824 wrote to memory of 3020	2824	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe
"C:\Users\Admin\AppData\Local\Temp\4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.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:2220
- - 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\svchost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2824
  - - 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:3020
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2576

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- 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:1988

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
1.7MB

MD5
d287a0aca64c340c5b9b0bdce201f233

SHA1
d43f1abbae2cfc9616c55ba2a069bbed2981200d

SHA256
4ca8f46b6e7de3804bad3cc01e8af9480f08f75fc1ee66ac2a8643ddf5df005b

SHA512
0b43cb5ea7aaa2a35288d75f5bf02baac7a22a297e524c773f4ad4ae90180fdf5800f4452ce10dcdd3db2e7473aff469745f489e24a58fcf1942dacdf2e2bedd

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259413906.txt

Filesize
50KB

MD5
f51c91ee1a1dd373e097b2d4f48d857c

SHA1
d86ef053be649c7dc2bb15ef43bac2a318923acf

SHA256
4309b79a077f3613944473fd222d32c9cfad53a20e4ec43d5c41a5081c3d1ac6

SHA512
0613b28fd1a4babff35305452cafd924a2a80c93e1ccdc3877fa3ce293db6d7612e219f90dda1ff65154c3fca2a3196f82c479bf9ab3cacca8292dfdee810d83

Download Submit
memory/1988-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1988-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1988-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1988-74-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-31-0x0000000010000000-0x00000000101B6000-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