gh0strat | b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e

General

Target

b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe
Size

2.3MB
MD5

2763464ad1b990840fbae34e6532eb6d
SHA1

b18847c2603fa0bc533049bbb4e4ff9b71575a13
SHA256

b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e
SHA512

e428dd0bbb90191c9d8f05e69e50481226b9381c6fe426585298dbbce840cb2ffa698ac96788cb7640567ee14899893fb6b5d0ed4260ad57be056a5141d63c6c
SSDEEP

24576:2CwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH+:2CwsbCANnKXferL7Vwe/Gg0P+WhNn

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
behavioral2/memory/3396-14-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3396-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3396-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2672-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2672-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2672-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2672-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2440-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2440-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b9b-5.dat	family_gh0strat
behavioral2/memory/3396-14-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3396-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3396-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2672-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2672-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2672-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2672-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2440-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2440-49-0x0000000010000000-0x00000000101B6000-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	TXPlatfor.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"	TXPlatfor.exe

Executes dropped EXE 4 IoCs

pid	Process
4232	R.exe
3396	N.exe
2672	TXPlatfor.exe
2440	TXPlatfor.exe

Loads dropped DLL 1 IoCs

pid	Process
4232	R.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240622890.txt	R.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3396-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3396-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3396-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3396-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2672-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2672-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2672-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2672-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2672-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2440-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2440-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1380	4232	WerFault.exe	82

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	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
404	PING.EXE
676	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
404	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2440	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3396	N.exe
Token: SeLoadDriverPrivilege	2440	TXPlatfor.exe
Token: 33	2440	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2440	TXPlatfor.exe
Token: 33	2440	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2440	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe
2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 4232	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	82
PID 2092 wrote to memory of 4232	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	82
PID 2092 wrote to memory of 4232	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	82
PID 2092 wrote to memory of 3396	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	86
PID 2092 wrote to memory of 3396	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	86
PID 2092 wrote to memory of 3396	2092	b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe	86
PID 3396 wrote to memory of 676	3396	N.exe	88
PID 3396 wrote to memory of 676	3396	N.exe	88
PID 3396 wrote to memory of 676	3396	N.exe	88
PID 2672 wrote to memory of 2440	2672	TXPlatfor.exe	89
PID 2672 wrote to memory of 2440	2672	TXPlatfor.exe	89
PID 2672 wrote to memory of 2440	2672	TXPlatfor.exe	89
PID 676 wrote to memory of 404	676	cmd.exe	91
PID 676 wrote to memory of 404	676	cmd.exe	91
PID 676 wrote to memory of 404	676	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe
"C:\Users\Admin\AppData\Local\Temp\b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:4232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 464
    3⤵
    - Program crash
    PID:1380
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.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:3396
- - 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\N.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:676
  - - 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:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4232 -ip 4232
1⤵
PID:2540

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.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:2440

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

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Downloads

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

Filesize
2.3MB

MD5
2763464ad1b990840fbae34e6532eb6d

SHA1
b18847c2603fa0bc533049bbb4e4ff9b71575a13

SHA256
b2b448a5b6c671f6fc6724c492f8821bc30507503c3627a7c1cf1e86a493822e

SHA512
e428dd0bbb90191c9d8f05e69e50481226b9381c6fe426585298dbbce840cb2ffa698ac96788cb7640567ee14899893fb6b5d0ed4260ad57be056a5141d63c6c

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240622890.txt

Filesize
899KB

MD5
0bcbe79a849730976bc9505d1e3bd9f1

SHA1
d1e002f656814c35cd0682071e55a98363c48afc

SHA256
bda4b9be7cb06f329e40d031bba8f818aaddb985402b2c3708f330e81404290c

SHA512
5b38a15ca51c741ed172bec8c7e38bbabf43745823b746a891cbebca2b2f478341f7c1b5dc6ae847ca5a7a48a71bdf732dc5a64bd56935dfb16a33bcb18d4fae

Download Submit
memory/2440-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2440-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2672-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2672-24-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2672-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2672-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2672-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3396-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3396-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3396-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3396-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads