gh0strat | b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938

General

Target

b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
Size

616KB
MD5

be5e4218aec5b7d5bc07640e0142eeb4
SHA1

727f7eb2a20a815a4dfaec198a5b9846e99c1ac3
SHA256

b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938
SHA512

a110c629ee7669f3caf67516b7ba27cebcf0ec43a51d00b1100a4539c97d448368adbbd1300b8cf95ee230a6f9c0b0bbd39f900dbac22681c019ddf97c597278
SSDEEP

12288:/i2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8y9N7YC:/i2Tro2H2HESq2eWJ6MQjySjy9N77

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1700-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1700-22-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1700-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2796-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2868-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2868-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2868-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1700-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1700-22-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1700-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2796-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2796-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2868-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2868-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2868-42-0x0000000010000000-0x00000000101B6000-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
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	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
1700	RVN.exe
2392	HD_b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
2796	TXPlatforn.exe
2868	TXPlatforn.exe

Loads dropped DLL 4 IoCs

pid	Process
2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
2796	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 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1700-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1700-22-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1700-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1700-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2796-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2796-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2868-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2868-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2868-42-0x0000000010000000-0x00000000101B6000-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	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RVN.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
2912	cmd.exe
2760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2760	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2868	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1700	RVN.exe
Token: SeLoadDriverPrivilege	2868	TXPlatforn.exe
Token: 33	2868	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2868	TXPlatforn.exe
Token: 33	2868	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2868	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 1700	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	30
PID 2504 wrote to memory of 2392	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	31
PID 2504 wrote to memory of 2392	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	31
PID 2504 wrote to memory of 2392	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	31
PID 2504 wrote to memory of 2392	2504	b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe	31
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 2796 wrote to memory of 2868	2796	TXPlatforn.exe	34
PID 1700 wrote to memory of 2912	1700	RVN.exe	35
PID 1700 wrote to memory of 2912	1700	RVN.exe	35
PID 1700 wrote to memory of 2912	1700	RVN.exe	35
PID 1700 wrote to memory of 2912	1700	RVN.exe	35
PID 2912 wrote to memory of 2760	2912	cmd.exe	37
PID 2912 wrote to memory of 2760	2912	cmd.exe	37
PID 2912 wrote to memory of 2760	2912	cmd.exe	37
PID 2912 wrote to memory of 2760	2912	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
"C:\Users\Admin\AppData\Local\Temp\b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2504
- 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:1700
- - 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:2912
  - - 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:2760
- C:\Users\Admin\AppData\Local\Temp\HD_b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe
  2⤵
  - Executes dropped EXE
  PID:2392

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:2796
- 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:2868

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\AppData\Local\Temp\HD_X.dat

Filesize
568KB

MD5
9228d162b87f8a96855b2a33f8cf88a3

SHA1
b9c08e84aaf15a96f0a279972f1bacb756badde3

SHA256
b7c23636179ba5a14ceaa53f5307efb3e5c8ff88be1b7a68c84118b7fdb4aabf

SHA512
4a41e9e1f4310bb3ea0eab2e9336f01f35713aded8fc74a17a23b57fdb67d1f0030c5b88363768057a9b2370c2d7da5f91489479e3a2ee6a9a1ecc6fc4421fe3

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b64fc204940c66a6add977a0c67ae4a97df32060ccd1a542d01a2564e479e938.exe

Filesize
48KB

MD5
94a1c655ba93be5a0205af99ac513f4e

SHA1
9dd8a70767250499c3b28e7bd6e2325aff9e1653

SHA256
267be68ada6d2a810e83f25011e377a0c5ec9fc49876ec39f1c75ccb4ea6d7f7

SHA512
baa55a6301fb38666220249981fabd5f7dd751452f5c9d7764d7a8c697a80f569770e28a3a0563304b55580d99b09c31c1a3208579a5c5dc26f2b90132a4fbb9

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1700-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1700-22-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1700-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1700-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2392-43-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2796-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2796-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2868-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2868-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2868-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads