gh0strat | b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac

General

Target

b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
Size

12.2MB
MD5

425e7fbb7ebb52d5cee5275456b80f0c
SHA1

5fcdbb98e2ef9e12ca3850b600e0a93f734347a2
SHA256

b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac
SHA512

7ac0fca230e5cf7d119b175f91d4ba53702e55548a714ed71bf13b41b62ecb9d90ab8d19878dfe7019475791582b0e20f9c3aabe9e8538b593a6ed5811121934
SSDEEP

393216:i7lSEKH3HVklBf1kjsXHmMFrJEr5jcEve2/FleI:SlNwVsBbHz8r5j9vRle

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2112-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2112-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2112-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2748-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3048-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2748-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3048-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3024-38-0x0000000005050000-0x0000000006185000-memory.dmp	purplefox_rootkit
behavioral1/memory/3048-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3048-82-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2112-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2112-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2112-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2748-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3048-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2748-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3048-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3048-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3048-82-0x0000000010000000-0x00000000101B6000-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
2112	QQ.exe
2748	TXPlatforn.exe
3048	TXPlatforn.exe
2720	HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe

Loads dropped DLL 4 IoCs

pid	Process
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
2748	TXPlatforn.exe
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2112-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2112-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2112-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2112-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2748-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3048-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2748-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/files/0x0008000000016b85-30.dat	upx
behavioral1/memory/3048-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-39-0x0000000000400000-0x0000000001535000-memory.dmp	upx
behavioral1/memory/3024-38-0x0000000005050000-0x0000000006185000-memory.dmp	upx
behavioral1/memory/3048-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3048-82-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-118-0x0000000000400000-0x0000000001535000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	QQ.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	QQ.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.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	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
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	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	QQ.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
576	PING.EXE
2688	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
576	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3048	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2112	QQ.exe
Token: SeLoadDriverPrivilege	3048	TXPlatforn.exe
Token: 33	3048	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3048	TXPlatforn.exe
Token: 33	3048	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3048	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
2720	HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
2720	HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 3024 wrote to memory of 2112	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	30
PID 2112 wrote to memory of 2688	2112	QQ.exe	32
PID 2112 wrote to memory of 2688	2112	QQ.exe	32
PID 2112 wrote to memory of 2688	2112	QQ.exe	32
PID 2112 wrote to memory of 2688	2112	QQ.exe	32
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 2748 wrote to memory of 3048	2748	TXPlatforn.exe	34
PID 3024 wrote to memory of 2720	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	35
PID 3024 wrote to memory of 2720	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	35
PID 3024 wrote to memory of 2720	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	35
PID 3024 wrote to memory of 2720	3024	b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe	35
PID 2688 wrote to memory of 576	2688	cmd.exe	36
PID 2688 wrote to memory of 576	2688	cmd.exe	36
PID 2688 wrote to memory of 576	2688	cmd.exe	36
PID 2688 wrote to memory of 576	2688	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
"C:\Users\Admin\AppData\Local\Temp\b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\QQ.exe
  C:\Users\Admin\AppData\Local\Temp\\QQ.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:2112
- - 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\QQ.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2688
  - - 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:576
- C:\Users\Admin\AppData\Local\Temp\HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2720

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:2748
- 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:3048

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\Cab60C8.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.4MB

MD5
cdf35aa6922f2ab03240cb465b032864

SHA1
92fa6a831d5476099f9a3e14c15324a47a54980d

SHA256
2b8368c5ebd2f10b9cc524e04d91116a1de3eec3250fac9447fd1c12c3dcad06

SHA512
a832e36da299eb268bde66f8c450ca7618a501a85758350bc71ef18305378ad858046311e3cacbb592d6cef28a3a186b4b65c2bb89b98422722544451fd17e49

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar60FA.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\Temp\HD_b466d99f7757d9d97911f11f8ae9e5e24ce8d2c528a83b65fb124670b4bfa9ac.exe

Filesize
10.8MB

MD5
70d1abf37bdaa1de52d3985603529ab1

SHA1
4def68e9d8ec94421f2e07575af5dc3184635723

SHA256
71aa84bc19f44a81c149caec4c2fbb925c219d29a12aa57e96e99db6f6e361f7

SHA512
a9623e8f1e0113ab1f05763b7e0382f023c15803b141036ff9032bcab51e7adc2be2183a6cdb3693c941b5cd72196eaeb8daabaf27d3b2c87eedb8d4110df5af

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

Filesize
377KB

MD5
3d6e7db5800f1dadb016cbf989749e3c

SHA1
7c09c438a352cbc4de5d7279bf07d36e8f6cbfef

SHA256
bb43f73ddd5d04adcd723061ccf3a535387fa439aba0039d39a72f5d6ae3062b

SHA512
a98392c694a662a243581bc07582bffa9f425c4bd9acf2a68c19fbe95ee64f95ed4ca3100802736f67eea809a95fbf4f5e357800d3fa21f9d57b1f8d07d1462c

Download Submit
memory/2112-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2112-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2112-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2112-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-39-0x0000000000400000-0x0000000001535000-memory.dmp

Filesize
17.2MB

Download
memory/2720-45-0x0000000010000000-0x00000000101D4000-memory.dmp

Filesize
1.8MB

Download
memory/2720-118-0x0000000000400000-0x0000000001535000-memory.dmp

Filesize
17.2MB

Download
memory/2748-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2748-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3024-38-0x0000000005050000-0x0000000006185000-memory.dmp

Filesize
17.2MB

Download
memory/3024-43-0x0000000005050000-0x0000000006185000-memory.dmp

Filesize
17.2MB

Download
memory/3024-117-0x0000000005050000-0x0000000006185000-memory.dmp

Filesize
17.2MB

Download
memory/3024-120-0x0000000005050000-0x0000000006185000-memory.dmp

Filesize
17.2MB

Download
memory/3048-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3048-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3048-82-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3048-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads