gh0strat | a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458

General

Target

a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
Size

5.5MB
MD5

1e1fbe9218c2d6e3d1ec111f8e33ebaa
SHA1

5289b5a16e62263d2a42d2fd76002d2507b56430
SHA256

a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458
SHA512

c4d5e23816e18b04a2c9c5a48f5923728a87a015405be8d3040ff430c81d15185a0ddf1b0fa961137f00336cb271f7f274a40a063646327ed237daf1198789a1
SSDEEP

98304:iws2ANnKXOaeOgmh1YJDmn2s3K46FKDKMPMnHRcQqYZR:4KXbeO7fYFmnd3lXOFOYZR

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/1336-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1336-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3844-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3844-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240645093.txt	family_gh0strat
behavioral2/memory/1336-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1336-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3844-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3844-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-45-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatfor.exe

description ioc process

File created C:\Windows\system32\drivers\QAssist.sys TXPlatfor.exe

description	ioc	process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

R.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240645093.txt"	R.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatfor.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

Processes:

R.exeN.exeTXPlatfor.exeTXPlatfor.exeHD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exeRemote Data.exe

pid	process
4904	R.exe
1336	N.exe
3844	TXPlatfor.exe
5096	TXPlatfor.exe
2336	HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
352	Remote Data.exe

Loads dropped DLL 3 IoCs

Processes:

R.exesvchost.exeRemote Data.exe

pid process

4904 R.exe
4016 svchost.exe
352 Remote Data.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1336-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1336-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1336-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3844-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3844-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3844-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

N.exeR.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240645093.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3052 PING.EXE

pid	process
3052	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

pid	process
1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

5096 TXPlatfor.exe

pid	process
5096	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

N.exeTXPlatfor.exeHD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1336	N.exe
Token: SeLoadDriverPrivilege	5096	TXPlatfor.exe
Token: SeCreateGlobalPrivilege	2336	HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
Token: 33	5096	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	5096	TXPlatfor.exe
Token: 33	5096	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	5096	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

pid	process
1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 1244 wrote to memory of 4904	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	R.exe
PID 1244 wrote to memory of 4904	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	R.exe
PID 1244 wrote to memory of 4904	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	R.exe
PID 1244 wrote to memory of 1336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	N.exe
PID 1244 wrote to memory of 1336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	N.exe
PID 1244 wrote to memory of 1336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	N.exe
PID 1336 wrote to memory of 2620	1336	N.exe	cmd.exe
PID 1336 wrote to memory of 2620	1336	N.exe	cmd.exe
PID 1336 wrote to memory of 2620	1336	N.exe	cmd.exe
PID 3844 wrote to memory of 5096	3844	TXPlatfor.exe	TXPlatfor.exe
PID 3844 wrote to memory of 5096	3844	TXPlatfor.exe	TXPlatfor.exe
PID 3844 wrote to memory of 5096	3844	TXPlatfor.exe	TXPlatfor.exe
PID 1244 wrote to memory of 2336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
PID 1244 wrote to memory of 2336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
PID 1244 wrote to memory of 2336	1244	a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe	HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
PID 2620 wrote to memory of 3052	2620	cmd.exe	PING.EXE
PID 2620 wrote to memory of 3052	2620	cmd.exe	PING.EXE
PID 2620 wrote to memory of 3052	2620	cmd.exe	PING.EXE
PID 4016 wrote to memory of 352	4016	svchost.exe	Remote Data.exe
PID 4016 wrote to memory of 352	4016	svchost.exe	Remote Data.exe
PID 4016 wrote to memory of 352	4016	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
"C:\Users\Admin\AppData\Local\Temp\a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4904
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1336
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3052
- C:\Users\Admin\AppData\Local\Temp\HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
  C:\Users\Admin\AppData\Local\Temp\HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2336

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2956

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240645093.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:352

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3844
- 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:5096

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4072,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4128 /prefetch:8
1⤵
PID:2956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2.8MB

MD5
00793a191ce20a3fdfc5524ff2eee150

SHA1
f37fa4ccc1891aee6803b00db87bae8c614c9f18

SHA256
caaa9db96d68ef4a78566a280e242c0dfb9dd2c3ede614564aa6ba04444fbc04

SHA512
a5e7a97a6e5d7398736bd8ef47beb4e4bf3c3cbc17c61c06fafe994a2274fd6dc116864f7c290ee3767da11a9964699c66be333af9c587b16517203707e4c578

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_a4c353dcfd32871af940f1eef503ec895115160119d7f0d7925c6c70c0cd7458.exe

Filesize
2.7MB

MD5
1fc3f4b9d086b87cd8e5d1fa3142364d

SHA1
abfea5c5eb519c646ca482343e52a1fcbc6cdd6f

SHA256
d37befb43b92f7f9096058ad62ff3fd1a26ebb0c6470f12834f50ef66dc62006

SHA512
7d58d5ab2ba2e9085bbb31028cf096ea112f5f8c1c50e8c941f5aa42eb5967ac318d285e15817b35c68257d785db5573a2b6ccbf6146997826809c66a735166a

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\240645093.txt

Filesize
899KB

MD5
d5342d0821d42b4cdd3a341a14db8c21

SHA1
9268973a794d1898f111c999105cc1ebc77c2742

SHA256
09b8a4affc2419f2042939b2ae40a30e53d44fbdbbe12a157cd8bfac34616f69

SHA512
c8f0b10bc0b733525385af6e24c78907cf6882a1f50a006d540a032afd4744d8377b8e9b87c0f03385924aabcf1fd376f23661193b781b6c682521716927accb

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1336-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1336-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1336-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1336-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3844-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3844-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3844-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads