gh0strat | c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 09:05

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General

Target
c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
Size 7.0MB
Sample240625-k2pjdstdqj
SHA256 c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23
MD5 f8ee64abdf1125480cb0818d0a8d08ab
SHA1 9d9f798150b6e1105a341e622d688ed759ea076c
SHA512 b3d57374496a9b673006ac8ed991d0fa7ddde5390cecb0db113e965637222ac07e79e251beca37c1aef1574fcda4560061a3326134e2456248ce36ca9f81521e
SSDEEP 98304:9ws2ANnKXOaeOgmhHJDmn2owa6gPcx1B9quIt8OeIzRLFFn:nKXbeO7pFmnbPcrnDiJz1
MD5 SHA1 SHA512 SSDEEP

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/4436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4436-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4436-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4492-62-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4492-65-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4492-66-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023451-5.dat	family_gh0strat
behavioral2/memory/4436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4436-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4436-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4492-62-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4492-65-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4492-66-0x0000000010000000-0x00000000101B6000-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\\240602156.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
4144	R.exe
4436	N.exe
3808	TXPlatfor.exe
4492	TXPlatfor.exe
1232	HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
1208	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4144	R.exe
1100	svchost.exe
1208	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4436-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4436-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4436-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4492-62-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4492-65-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4492-66-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240602156.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.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
1644	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4492	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4436	N.exe
Token: SeLoadDriverPrivilege	4492	TXPlatfor.exe
Token: 33	4492	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4492	TXPlatfor.exe
Token: 33	4492	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4492	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
1232	HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
1232	HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 4144	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	83
PID 3888 wrote to memory of 4144	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	83
PID 3888 wrote to memory of 4144	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	83
PID 3888 wrote to memory of 4436	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	86
PID 3888 wrote to memory of 4436	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	86
PID 3888 wrote to memory of 4436	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	86
PID 4436 wrote to memory of 4724	4436	N.exe	89
PID 4436 wrote to memory of 4724	4436	N.exe	89
PID 4436 wrote to memory of 4724	4436	N.exe	89
PID 3808 wrote to memory of 4492	3808	TXPlatfor.exe	90
PID 3808 wrote to memory of 4492	3808	TXPlatfor.exe	90
PID 3808 wrote to memory of 4492	3808	TXPlatfor.exe	90
PID 3888 wrote to memory of 1232	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	91
PID 3888 wrote to memory of 1232	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	91
PID 3888 wrote to memory of 1232	3888	c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe	91
PID 4724 wrote to memory of 1644	4724	cmd.exe	94
PID 4724 wrote to memory of 1644	4724	cmd.exe	94
PID 4724 wrote to memory of 1644	4724	cmd.exe	94
PID 1100 wrote to memory of 1208	1100	svchost.exe	96
PID 1100 wrote to memory of 1208	1100	svchost.exe	96
PID 1100 wrote to memory of 1208	1100	svchost.exe	96

C:\Users\Admin\AppData\Local\Temp\c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
"C:\Users\Admin\AppData\Local\Temp\c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3888
- 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:4144
- 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:4436
- - 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:4724
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1644
- C:\Users\Admin\AppData\Local\Temp\HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
  C:\Users\Admin\AppData\Local\Temp\HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1232

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4584

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:1100
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240602156.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1208

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3808
- 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:4492

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.6MB
SHA256 ff47e1e3f6c2f3c4abdfa104d0e1b81f269d042b806d8ac02ef168e3b6938c17
MD5 e64183dbbfd2f8c4682f1c2dc7d79950
SHA1 7e7ebc31bcf428127aaf83afbdf07bfd70a9fde4
SHA512 c2292cd5e958f3f1e3e63bcf4a828f0c44238ef3d4374e60111eecea281a2e3b9a48cce6ec1a310bc0c94cdf508502cc46501062cd9c2353fe1db0487c9aa42a
SSDEEP 49152:qCwsbCANnKXferL7Vwe/Gg0P+WhHJDmn2A:9ws2ANnKXOaeOgmhHJDmn2A
MD5 SHA1 SHA512 SSDEEP

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HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_c9c9720c2a43c5c4633b32b4c409ca3d996d764e1ad38ed6ad9c09942386cf23.exe
Size 4.4MB
SHA256 d3d212597f363ecc4fb528ccf60661c0a8f184d06e107b80e4cfec64c2179499
MD5 8f40e09abdf21d04472b90b46f8f0593
SHA1 0ed8f479a2da5a1b33ff5c468531c7721ece8c4f
SHA512 8359ade644e1f8eb4377f890419a32a2fc1d9370382b2ee0bf4dc3d9f86f30098589e15cf9c8730e7adb4142b749e2cc25eff7c92ea61efa1902d391f7fbe937
SSDEEP 49152:awaIXgPcx1B9q0a8eft8O6tIzRLcSUyn8h:awa6gPcx1B9quIt8OeIzRLFFn
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path C:\Users\Admin\AppData\Local\Temp\N.exe
Size 377KB
SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
MD5 4a36a48e58829c22381572b2040b6fe0
SHA1 f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA512 5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YHL7:HclcceBKlKwAg0Mja/UafOVwbha
MD5 SHA1 SHA512 SSDEEP

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R.exe

Path C:\Users\Admin\AppData\Local\Temp\R.exe
Size 941KB
SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
MD5 8dc3adf1c490211971c1e2325f1424d2
SHA1 4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA512 ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
SSDEEP 24576:N+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw:cerL7Vw
MD5 SHA1 SHA512 SSDEEP

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240602156.txt

Path C:\Windows\SysWOW64\240602156.txt
Size 899KB
SHA256 6a0eed1fa3428540f241d48256cdcfe93103aa5fc6fafba349dc1b53f1f42f01
MD5 6ec9c860eaff181fa1891e8878d87aad
SHA1 e633b6ea253104abd3fee1462cbfb542e1c15da1
SHA512 302a3f88f90e3b1403413ba29c1116dbaa71b52abb132948a34ce0ef2f7b5bfd79d12b9bf00af25923da87d7c9d3506d54aff022b0037f0ec305bd2067d80a9e
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXw:7wqd87Vw
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3808-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4436-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4436-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4436-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4436-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4492-62-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4492-65-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4492-66-0x0000000010000000-0x00000000101B6000-memory.dmp

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