gh0strat | a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98

General

Target

a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
Size

2.5MB
MD5

9b0640e26f4a635784ce9a1f9da6bc5a
SHA1

db778a3f89eaa321b1f8764b188369f4cc06fb71
SHA256

a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98
SHA512

1fd355695b74464b784bd4505a8b712e3f215075d9458efef044d0ef2f57ca0b2f7a7db006c29a987089b728c651870e8ad4fc4993ba93f717933bc1efc6f0bf
SSDEEP

49152:vCwsbCANnKXferL7Vwe/Gg0P+WhzaUteEDT:6ws2ANnKXOaeOgmhzaUteEn

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3588-14-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3588-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3588-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1080-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1080-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4900-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4900-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4900-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023259-5.dat	family_gh0strat
behavioral2/memory/3588-14-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3588-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3588-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1080-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1080-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4900-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4900-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4900-47-0x0000000010000000-0x00000000101B6000-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	TXPlatfor.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240652906.txt"	R.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 6 IoCs

pid	Process
4652	R.exe
3588	N.exe
1080	TXPlatfor.exe
4740	HD_a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
4900	TXPlatfor.exe
1188	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4652	R.exe
3996	svchost.exe
1188	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3588-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3588-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3588-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3588-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1080-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1080-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1080-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4900-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4900-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4900-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240652906.txt	R.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2732	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4900	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3588	N.exe
Token: SeLoadDriverPrivilege	4900	TXPlatfor.exe
Token: 33	4900	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4900	TXPlatfor.exe
Token: 33	4900	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4900	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 4652	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	90
PID 824 wrote to memory of 4652	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	90
PID 824 wrote to memory of 4652	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	90
PID 824 wrote to memory of 3588	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	91
PID 824 wrote to memory of 3588	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	91
PID 824 wrote to memory of 3588	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	91
PID 824 wrote to memory of 4740	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	95
PID 824 wrote to memory of 4740	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	95
PID 824 wrote to memory of 4740	824	a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe	95
PID 3588 wrote to memory of 4444	3588	N.exe	96
PID 3588 wrote to memory of 4444	3588	N.exe	96
PID 3588 wrote to memory of 4444	3588	N.exe	96
PID 4444 wrote to memory of 2732	4444	cmd.exe	98
PID 4444 wrote to memory of 2732	4444	cmd.exe	98
PID 4444 wrote to memory of 2732	4444	cmd.exe	98
PID 1080 wrote to memory of 4900	1080	TXPlatfor.exe	99
PID 1080 wrote to memory of 4900	1080	TXPlatfor.exe	99
PID 1080 wrote to memory of 4900	1080	TXPlatfor.exe	99
PID 3996 wrote to memory of 1188	3996	svchost.exe	101
PID 3996 wrote to memory of 1188	3996	svchost.exe	101
PID 3996 wrote to memory of 1188	3996	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
"C:\Users\Admin\AppData\Local\Temp\a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4652
- 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:3588
- - 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:4444
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2732
- C:\Users\Admin\AppData\Local\Temp\HD_a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
  C:\Users\Admin\AppData\Local\Temp\HD_a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe
  2⤵
  - Executes dropped EXE
  PID:4740

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1340

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:3996
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240652906.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1188

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1080
- 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:4900

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 --mojo-platform-channel-handle=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:2536

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

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

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

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
16990afab31c3a30601bbea221dfa4ed

SHA1
41f18d51dcf3668b6bfe3ca7641b7af5bcac9296

SHA256
473bbc262f4b4b94623a9e7defb67a68ad67c533f37eb2576302b78d08d92803

SHA512
043bdeec335c9ead01ecd271f37a9a0570e4132c2fc59f69472e1c783411284cd79e0dcfeb66369ea8da66346bc63bbf935cc87bc41a4e1710ba9e6c61e9d038

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_a0ac9fbd354049da4e21371185ea9cf5f065c963bd2869bb039c91bce36d1f98.exe

Filesize
228KB

MD5
d52fb441628c4da9277efa98845fe17f

SHA1
985f24a9bfd95a411159d01f98acc3c99eb407cb

SHA256
d17de3ce45592dd49966fba823a323a971678be0631af2c49374545eab6fd9b5

SHA512
5eb143a7e97754162a57fbc4ea557d72d9959600024a3c4eb3fcadee1ba80ccf785cda66fd841163bee3e4846ae53d6c8fb75b390859860d673a5769c9002492

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:\Users\Admin\AppData\Local\Temp\RCXC63B.tmp

Filesize
2.3MB

MD5
89a5be25baa4ae1a4837d6c5eea42560

SHA1
01bb04adb4ad68651cdfd5bd04be40002e24b74b

SHA256
454b9cccd0841731af52eafe5887d4faf0cc42f7bca5f413b84050b66c59d8cc

SHA512
cbc631c55714f425b53c496a935a8ea74acc975cb15d18abb5424c081148e83ec2c3d6043c4d54f1f40c5b4ea741c0dc5080c49be29094a4caf49608f65134ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\X.ico

Filesize
69KB

MD5
e33fb6d686b1a8b171349572c5a33f67

SHA1
29f24fe536adf799b69b63c83efadc1bce457a54

SHA256
020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450

SHA512
cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55

Download Submit
C:\Windows\SysWOW64\240652906.txt

Filesize
899KB

MD5
376715c8476a70023c74dbebab6243e7

SHA1
131c91a74904e712e64d76091f79bc57c673f373

SHA256
5dbfc14797b59880aee82296dbad9845f03c9cc8e1f52a4673d010048590aa64

SHA512
9dce2ec3713d3fd637740fef86ed8f28fd91d863704648177bbcd47034daa1c54084a9af58c07ea1d9cb9c5464256fa99e34833bbea613637730b608b55209fa

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1080-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1080-31-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1080-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3588-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3588-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3588-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3588-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4900-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4900-47-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4900-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads