gh0strat | c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052

General

Target

c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe
Size

596KB
MD5

4bdd34954de99e278b3c67a7c04bc133
SHA1

7e6e968b5d36f0dcd244bdd6dd0f6fc9ee7ef7d2
SHA256

c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052
SHA512

7320af9f94f811bd42482f8314cddde3de2b64859f9469f687bbd789f3c43c3e8138d502a3d49189c57245d5170fa30d5e8ec3e0524dd122a59e029703e55787
SSDEEP

12288:ki2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yw/:ki2Tro2H2HESq2eWJ6MQjySjyw/

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/2596-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2596-11-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2784-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2784-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2784-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2984-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2784-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2596-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2596-11-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2784-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2784-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2784-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2984-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2784-36-0x0000000010000000-0x00000000101B6000-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
2596	RVN.exe
2984	TXPlatforn.exe
2784	TXPlatforn.exe

Loads dropped DLL 2 IoCs

pid	Process
2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe
2984	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 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2596-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2596-11-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2596-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2784-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2784-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2784-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2984-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2784-36-0x0000000010000000-0x00000000101B6000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.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
3012	cmd.exe
2604	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2604	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2784	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2596	RVN.exe
Token: SeLoadDriverPrivilege	2784	TXPlatforn.exe
Token: 33	2784	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2784	TXPlatforn.exe
Token: 33	2784	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2784	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2992 wrote to memory of 2596	2992	c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe	30
PID 2596 wrote to memory of 3012	2596	RVN.exe	33
PID 2596 wrote to memory of 3012	2596	RVN.exe	33
PID 2596 wrote to memory of 3012	2596	RVN.exe	33
PID 2596 wrote to memory of 3012	2596	RVN.exe	33
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 2984 wrote to memory of 2784	2984	TXPlatforn.exe	35
PID 3012 wrote to memory of 2604	3012	cmd.exe	36
PID 3012 wrote to memory of 2604	3012	cmd.exe	36
PID 3012 wrote to memory of 2604	3012	cmd.exe	36
PID 3012 wrote to memory of 2604	3012	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe
"C:\Users\Admin\AppData\Local\Temp\c21a3d454d7740e7b404749a015a30bec91b6b0c346a2440f940e85fa4653052.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2992
- 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:2596
- - 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:3012
  - - 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:2604

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:2984
- 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:2784

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:\Users\Admin\Desktop\BackupEnter.exe

Filesize
1.2MB

MD5
725f7010ef5e58c8dbe51992f5620c73

SHA1
39c7230f849877fcaf674f01b861d70f695c3b7d

SHA256
2c0dfe638f9025d2eaf74a5f500a2b4a5f21875a5b54f3311c9eabd5a8599c30

SHA512
5f5a15d2b9246f83cf17aec6daf6629baf7e1bbfa91afb171078e5348ef658bf341707de7b6d8f0b740bef3a05b880aac0282a48b917d24f9f75e4e8ecdaf2bb

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/2596-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2596-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2596-11-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2596-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2784-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2784-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2784-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2784-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2984-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2984-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads