gh0strat | c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2

General

Target

c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
Size

1.7MB
MD5

971fdb6dbac10fa0f1f48f8c02e16291
SHA1

14f8ad2b1e33625997ca5c6d18db2be4f1a325ca
SHA256

c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2
SHA512

e0e68b3ae5080f8ab5e52c47781e100f754868e020d48f81befc3933761cd3669419f98744cb72816b63bd42b915cd2bb1ff94b58546d9d21649f9c6617ab136
SSDEEP

24576:KQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVjwpeXyZWSJx24G:KQZAdVyVT9n/Gg0P+Who9peiZlg4G

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 12 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3172-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3172-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3172-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4620-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4216-78-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4216-77-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4216-79-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4216-83-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4216-84-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 13 IoCs

resource	yara_rule
behavioral2/memory/3172-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3172-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3172-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4620-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4620-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4620-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x00070000000235a1-31.dat	family_gh0strat
behavioral2/memory/4620-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4216-78-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4216-77-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4216-79-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4216-83-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4216-84-0x0000000010000000-0x00000000101B6000-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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240655171.txt"	svchos.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 5 IoCs

pid	Process
3172	svchost.exe
4620	TXPlatforn.exe
232	svchos.exe
4216	TXPlatforn.exe
2244	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
232	svchos.exe
1392	svchost.exe
2244	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3172-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3172-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3172-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3172-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4620-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4620-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4620-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4620-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4620-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-75-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-78-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-77-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-79-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-83-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4216-84-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240655171.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.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 8 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	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
2848	PING.EXE
4404	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2848	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4216	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3172	svchost.exe
Token: SeLoadDriverPrivilege	4216	TXPlatforn.exe
Token: 33	4216	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4216	TXPlatforn.exe
Token: 33	4216	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4216	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 3172	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	89
PID 1808 wrote to memory of 3172	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	89
PID 1808 wrote to memory of 3172	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	89
PID 3172 wrote to memory of 4404	3172	svchost.exe	91
PID 3172 wrote to memory of 4404	3172	svchost.exe	91
PID 3172 wrote to memory of 4404	3172	svchost.exe	91
PID 1808 wrote to memory of 232	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	92
PID 1808 wrote to memory of 232	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	92
PID 1808 wrote to memory of 232	1808	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	92
PID 4620 wrote to memory of 4216	4620	TXPlatforn.exe	93
PID 4620 wrote to memory of 4216	4620	TXPlatforn.exe	93
PID 4620 wrote to memory of 4216	4620	TXPlatforn.exe	93
PID 4404 wrote to memory of 2848	4404	cmd.exe	97
PID 4404 wrote to memory of 2848	4404	cmd.exe	97
PID 4404 wrote to memory of 2848	4404	cmd.exe	97
PID 1392 wrote to memory of 2244	1392	svchost.exe	101
PID 1392 wrote to memory of 2244	1392	svchost.exe	101
PID 1392 wrote to memory of 2244	1392	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
"C:\Users\Admin\AppData\Local\Temp\c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1808
- 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:3172
- - 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:4404
  - - 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:2848
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:232

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:4620
- 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:4216

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:5028

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240655171.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2244

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4280,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1436 /prefetch:8
1⤵
PID:3756

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

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

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

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Downloads

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

Filesize
1.7MB

MD5
971fdb6dbac10fa0f1f48f8c02e16291

SHA1
14f8ad2b1e33625997ca5c6d18db2be4f1a325ca

SHA256
c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2

SHA512
e0e68b3ae5080f8ab5e52c47781e100f754868e020d48f81befc3933761cd3669419f98744cb72816b63bd42b915cd2bb1ff94b58546d9d21649f9c6617ab136

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

Filesize
1.5MB

MD5
902f41abd7df24a9bdfabf86c3821d7a

SHA1
1afcceffcef8cfa23809a3cc3fe3b6dd640ffb48

SHA256
dea204e506f2bd985093e7291c46795f7801b154a98631bbc45f07b4d2ffbf99

SHA512
65b3e807f0f23d5132a20a454203b79367d5f1c8319fdca0965ab5ed8d6e036723bd2c3b549299c06adf34f6e6dc405a65315450c38aeacb9b432ab4429084e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\X.ico

Filesize
69KB

MD5
e33fb6d686b1a8b171349572c5a33f67

SHA1
29f24fe536adf799b69b63c83efadc1bce457a54

SHA256
020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450

SHA512
cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
C:\Windows\SysWOW64\240655171.txt

Filesize
50KB

MD5
a53d8c8aaf3f68b0669affbb57c9ed70

SHA1
e405d600542197a68bf471114017b52a910fa0f5

SHA256
38066a04784a502a92ff4c7b0f31bb061143a401531b1d9abdbc8118ab39bf77

SHA512
932c30517e1a3cd43f372d6c670b3742787af11c826104b2403297f3fde850d94be1d12fc003bc0f6ce521ce2627856a320e02eda53e010b3f5b49e6fc726463

Download Submit
C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/3172-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3172-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3172-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3172-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-77-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-75-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-78-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-79-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-83-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4216-84-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4620-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4620-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4620-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4620-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4620-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads