gh0strat | d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
03/09/2023, 11:40

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General

Target

d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
Size

1.7MB
MD5

7f1cee38087344f909aebfbcb83b9943
SHA1

c37d615f08ae0a6d71d1d1df748e91999c0f6fc9
SHA256

d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f
SHA512

4402520fcc8c39cd09bc2a919eb04df7f386501570576fb6a11716eec7d428c0f014945276cec88e4349de724583c512cc63619a3f770a5a33e347194097ddcc
SSDEEP

24576:ei2Tro2H2HESq2eWJ6MQjySjygLNSy7tiHh0dFlXWEXegC:exTc2H2tFvduySbgHh0dFlX

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2796-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2796-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2796-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2796-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2796-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2796-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-40-0x0000000010000000-0x00000000101B6000-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
2796	RVN.exe
2000	HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
2804	TXPlatforn.exe
2832	TXPlatforn.exe

Loads dropped DLL 3 IoCs

pid	Process
1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
2804	TXPlatforn.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2796-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2796-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2796-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2796-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2812	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2832	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2796	RVN.exe
Token: SeLoadDriverPrivilege	2832	TXPlatforn.exe
Token: 33	2832	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2832	TXPlatforn.exe
Token: 33	2832	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2832	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2796	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	28
PID 1056 wrote to memory of 2000	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	29
PID 1056 wrote to memory of 2000	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	29
PID 1056 wrote to memory of 2000	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	29
PID 1056 wrote to memory of 2000	1056	d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe	29
PID 2796 wrote to memory of 1704	2796	RVN.exe	31
PID 2796 wrote to memory of 1704	2796	RVN.exe	31
PID 2796 wrote to memory of 1704	2796	RVN.exe	31
PID 2796 wrote to memory of 1704	2796	RVN.exe	31
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 2804 wrote to memory of 2832	2804	TXPlatforn.exe	32
PID 1704 wrote to memory of 2812	1704	cmd.exe	34
PID 1704 wrote to memory of 2812	1704	cmd.exe	34
PID 1704 wrote to memory of 2812	1704	cmd.exe	34
PID 1704 wrote to memory of 2812	1704	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
"C:\Users\Admin\AppData\Local\Temp\d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2796
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:1704
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2812
- C:\Users\Admin\AppData\Local\Temp\HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
  C:\Users\Admin\AppData\Local\Temp\HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe
  2⤵
  - Executes dropped EXE
  PID:2000

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2804
- 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:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

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
1020KB

MD5
8f904dfc13919403e1c61c1eb5d8e09f

SHA1
d587c29c03095f4aa4e43cf6e214b4b692834155

SHA256
d3f37da363b1b847cfce5904d3ca7504fdbf0ffabe49944447a1fc9c7df6d7d4

SHA512
4a408a282d469f3a98b3a7305eeff85439793ce5581437de48a25c8ff52e8090cd962ab33144bee52f937398b74ebd2b615cff7fe214594e476d3bfe303def80

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe

Filesize
727KB

MD5
48e1bf0b6df63a18187e57348b06ad7e

SHA1
605402f1d2ce5a04dd205412ab9edd8f90261967

SHA256
8e154ba521608bcf09bba26189e9e1bf86cae70ef7f283579518a641a0ea955f

SHA512
54dd1dd4d9e2c7a849fe7576f66870978153976e05b029246ebdf8ae43a70a390c9377296d34dd439530609a42047d8bb8cf6be9a1bb7eff9c4e9d91f5041233

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe

Filesize
727KB

MD5
48e1bf0b6df63a18187e57348b06ad7e

SHA1
605402f1d2ce5a04dd205412ab9edd8f90261967

SHA256
8e154ba521608bcf09bba26189e9e1bf86cae70ef7f283579518a641a0ea955f

SHA512
54dd1dd4d9e2c7a849fe7576f66870978153976e05b029246ebdf8ae43a70a390c9377296d34dd439530609a42047d8bb8cf6be9a1bb7eff9c4e9d91f5041233

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
C:\Windows\SysWOW64\TXPlatforn.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
C:\Windows\SysWOW64\TXPlatforn.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
C:\Windows\SysWOW64\TXPlatforn.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
C:\Windows\SysWOW64\TXPlatforn.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
\Users\Admin\AppData\Local\Temp\HD_d66197ab30a3ab928d063a8342c0e4f0a5eb335a3f1b5e875f90e0641a83d66f.exe

Filesize
727KB

MD5
48e1bf0b6df63a18187e57348b06ad7e

SHA1
605402f1d2ce5a04dd205412ab9edd8f90261967

SHA256
8e154ba521608bcf09bba26189e9e1bf86cae70ef7f283579518a641a0ea955f

SHA512
54dd1dd4d9e2c7a849fe7576f66870978153976e05b029246ebdf8ae43a70a390c9377296d34dd439530609a42047d8bb8cf6be9a1bb7eff9c4e9d91f5041233

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
\Windows\SysWOW64\TXPlatforn.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/2000-42-0x000000001AFC0000-0x000000001B040000-memory.dmp

Filesize
512KB

Download
memory/2000-46-0x000000001AFC0000-0x000000001B040000-memory.dmp

Filesize
512KB

Download
memory/2000-22-0x00000000011E0000-0x000000000129C000-memory.dmp

Filesize
752KB

Download
memory/2000-47-0x000000001AFC0000-0x000000001B040000-memory.dmp

Filesize
512KB

Download
memory/2000-41-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2000-43-0x000000001AFC0000-0x000000001B040000-memory.dmp

Filesize
512KB

Download
memory/2000-44-0x000000001AFC0000-0x000000001B040000-memory.dmp

Filesize
512KB

Download
memory/2000-45-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2796-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2796-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2796-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2796-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2804-35-0x0000000010161000-0x00000000101B5000-memory.dmp

Filesize
336KB

Download
memory/2832-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download