gh0strat | f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236

General

Target

f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe
Size

2.5MB
MD5

30d2fbb3f4e68aab4dffe3232323eb65
SHA1

7ad9a5af644ec884638ea7611e50be2ca997908e
SHA256

f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236
SHA512

848a35793102a2c0d207ee905949cb9b9e4c1cc7bd888456e9089e96ff40fe386b33fbcf4215364c5d3959c6bbaee62499ccc228eaf6d272119adc499870111f
SSDEEP

49152:mCwsbCANnKXferL7Vwe/Gg0P+Wh/daCHa:Rws2ANnKXOaeOgmhVaC6

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4952-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4952-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4952-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1636-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1636-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3624-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3624-50-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3624-51-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023589-5.dat	family_gh0strat
behavioral2/memory/4952-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4952-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4952-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1636-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1636-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3624-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3624-50-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3624-51-0x0000000010000000-0x00000000101B6000-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\\240692171.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 5 IoCs

pid	Process
956	R.exe
4952	N.exe
1636	TXPlatfor.exe
3624	TXPlatfor.exe
972	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
956	R.exe
3088	svchost.exe
972	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4952-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4952-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4952-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4952-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1636-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1636-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1636-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3624-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3624-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3624-51-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240692171.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	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	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.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 8 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	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
1732	cmd.exe
3572	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3572	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3624	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4952	N.exe
Token: SeLoadDriverPrivilege	3624	TXPlatfor.exe
Token: 33	3624	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3624	TXPlatfor.exe
Token: 33	3624	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3624	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe
3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 956	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	93
PID 3652 wrote to memory of 956	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	93
PID 3652 wrote to memory of 956	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	93
PID 3652 wrote to memory of 4952	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	97
PID 3652 wrote to memory of 4952	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	97
PID 3652 wrote to memory of 4952	3652	f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe	97
PID 4952 wrote to memory of 1732	4952	N.exe	99
PID 4952 wrote to memory of 1732	4952	N.exe	99
PID 4952 wrote to memory of 1732	4952	N.exe	99
PID 1636 wrote to memory of 3624	1636	TXPlatfor.exe	100
PID 1636 wrote to memory of 3624	1636	TXPlatfor.exe	100
PID 1636 wrote to memory of 3624	1636	TXPlatfor.exe	100
PID 1732 wrote to memory of 3572	1732	cmd.exe	102
PID 1732 wrote to memory of 3572	1732	cmd.exe	102
PID 1732 wrote to memory of 3572	1732	cmd.exe	102
PID 3088 wrote to memory of 972	3088	svchost.exe	107
PID 3088 wrote to memory of 972	3088	svchost.exe	107
PID 3088 wrote to memory of 972	3088	svchost.exe	107

C:\Users\Admin\AppData\Local\Temp\f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe
"C:\Users\Admin\AppData\Local\Temp\f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3652
- 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
  - System Location Discovery: System Language Discovery
  PID:956
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4952
- - 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⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:1732
  - - 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:3572

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4572

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240692171.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:972

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1636
- 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:3624

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=4188,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=3996 /prefetch:8
1⤵
PID:2184

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

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\HD_X.dat

Filesize
2.5MB

MD5
30d2fbb3f4e68aab4dffe3232323eb65

SHA1
7ad9a5af644ec884638ea7611e50be2ca997908e

SHA256
f20034957ee830fa39773dd371c5e39816b846863edb3f06e865e6a364120236

SHA512
848a35793102a2c0d207ee905949cb9b9e4c1cc7bd888456e9089e96ff40fe386b33fbcf4215364c5d3959c6bbaee62499ccc228eaf6d272119adc499870111f

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\RCX4C24.tmp

Filesize
2.4MB

MD5
8faf4f34201506d27c9ad1aadc8be848

SHA1
6f66e53197491ca86732321bbde7f55e5dba25bc

SHA256
45b6cbc521e143b19db6b540e7c09f6cd51478dd99710436d49fa537d9e2924b

SHA512
5c330b2b05b68ce842bd69ddf57c100b2715b6a7fac0c374c37d28bcff73acec49cadb00c9b8c9c55c9a1331183978efdcd55f19b68b9860898060bb96ccf0c6

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\240692171.txt

Filesize
899KB

MD5
b3526fa2cdb60f088a83cd1469b10c9f

SHA1
0b4190a6c51d3ff03ed51129ecc0e361f6ae1bbe

SHA256
fd450a1311704ad24e1dc397337746ab666ec950de72f06d6a942465aed072e2

SHA512
55b903dd1e537b8225e32ca8c47cb0c626d4900d288285c1a9186c9a1c99c80fb41821a2b341d9e0c46a4a2414ba104f676f580aab29321f80d5d4679e6667ed

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1636-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1636-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1636-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3624-50-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3624-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3624-51-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4952-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4952-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4952-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4952-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads