gh0strat | b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10

General

Target

b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
Size

1.5MB
MD5

4a439948f39720e5e6bd0840acdcc749
SHA1

f968d8f30d3a771d81fb0312752eb072a760d2fb
SHA256

b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10
SHA512

7c9220fee8c0a5f16cf2d94ee150f524401a622c25a14fc3f7c4fa1b5cd419560d8e97461903b0c54239ddfeb8200bd9bcb705016001b206bcbbb65b845811eb
SSDEEP

24576:jQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVQu/qhBT66cn:jQZAdVyVT9n/Gg0P+WhoHsABTun

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 12 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4000-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4000-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4000-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-25-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4000-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5096-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 13 IoCs

resource	yara_rule
behavioral2/memory/4000-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4000-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4000-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x0007000000023564-43.dat	family_gh0strat
behavioral2/memory/5096-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-25-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4000-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5096-16-0x0000000010000000-0x00000000101B6000-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

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\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240650687.txt"	svchos.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 5 IoCs

pid	Process
4000	svchost.exe
5096	TXPlatforn.exe
4600	TXPlatforn.exe
2876	svchos.exe
1096	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
2876	svchos.exe
1088	svchost.exe
1096	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4000-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4000-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4000-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4000-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-25-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4000-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5096-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240650687.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
File created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.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
1640	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4600	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4000	svchost.exe
Token: SeLoadDriverPrivilege	4600	TXPlatforn.exe
Token: 33	4600	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4600	TXPlatforn.exe
Token: 33	4600	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4600	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 4000	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	87
PID 528 wrote to memory of 4000	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	87
PID 528 wrote to memory of 4000	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	87
PID 4000 wrote to memory of 1956	4000	svchost.exe	92
PID 4000 wrote to memory of 1956	4000	svchost.exe	92
PID 4000 wrote to memory of 1956	4000	svchost.exe	92
PID 5096 wrote to memory of 4600	5096	TXPlatforn.exe	93
PID 5096 wrote to memory of 4600	5096	TXPlatforn.exe	93
PID 5096 wrote to memory of 4600	5096	TXPlatforn.exe	93
PID 528 wrote to memory of 2876	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	94
PID 528 wrote to memory of 2876	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	94
PID 528 wrote to memory of 2876	528	b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe	94
PID 1956 wrote to memory of 1640	1956	cmd.exe	98
PID 1956 wrote to memory of 1640	1956	cmd.exe	98
PID 1956 wrote to memory of 1640	1956	cmd.exe	98
PID 1088 wrote to memory of 1096	1088	svchost.exe	101
PID 1088 wrote to memory of 1096	1088	svchost.exe	101
PID 1088 wrote to memory of 1096	1088	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe
"C:\Users\Admin\AppData\Local\Temp\b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4000
- - 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\svchost.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1956
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1640
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:2876

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5096
- 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:4600

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:4444

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240650687.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1096

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 --field-trial-handle=3856,i,7545522914305657361,9950105517201397946,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:8
1⤵
PID:4484

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
1.5MB

MD5
4a439948f39720e5e6bd0840acdcc749

SHA1
f968d8f30d3a771d81fb0312752eb072a760d2fb

SHA256
b6432a97b5a1cc7a69c464eb2fb97e41f6014d66e1358d9af87271be9e05fa10

SHA512
7c9220fee8c0a5f16cf2d94ee150f524401a622c25a14fc3f7c4fa1b5cd419560d8e97461903b0c54239ddfeb8200bd9bcb705016001b206bcbbb65b845811eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCXA817.tmp

Filesize
1.6MB

MD5
d1047b0ccdfbeac8727aba803c947d44

SHA1
d180b1b1090672b69c070cc96c9190d92c61cf45

SHA256
08c052761462c8be97b71d89aba922233c19adf1ffe93c594b05f8c7f0455463

SHA512
8fb2910cf328d7e973c0a14b6e76a6dc6e015b0eb24c251e66be938cd5e53bde20196f518ddb4d4030b867bebe8914c05ba54f86afd6177cff0eaf01d5dab92f

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

Filesize
69KB

MD5
e33fb6d686b1a8b171349572c5a33f67

SHA1
29f24fe536adf799b69b63c83efadc1bce457a54

SHA256
020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450

SHA512
cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
C:\Windows\SysWOW64\240650687.txt

Filesize
50KB

MD5
a6ec4cbead95b83119135e3a734460ac

SHA1
03299d554f218a7151d8ec8931d5faaa5821007a

SHA256
eaac73d1f5656df528caaf491ab4edf1725eb6037bbdbcce6d55055bcf1abb75

SHA512
6bb5eab5533d56db7de88ff59b6310b809091607ada268de206769943f823a7b1e14f58766c5e8a90da81f0f482fec9f6559e639bb55388e532fb3f5a8db60ae

Download Submit
C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/4000-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4000-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4000-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4000-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4000-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-25-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5096-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads