gh0strat | 4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f

Analysis

max time kernel
74s
max time network
124s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 03:52

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General

Target
4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
Size 3.3MB
Sample240606-ee283sha33
SHA256 4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f
MD5 9e6f5043f66369f49627c9024148ef98
SHA1 e95a86707b348bc97a427e046b6cb0ffc7bca913
SHA512 6e25b456a8e45871df490424b1a97f2cde8c92985145490af3678a9628150a09f53ac5ce0dc69c43c2b8fff6dd56fe96397473683faf0c65178e3153e9ac704f
SSDEEP 49152:UCwsbCANnKXferL7Vwe/Gg0P+Whf/GWj+pTixWC:3ws2ANnKXOaeOgmhfu/TioC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2780-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2620-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/files/0x0033000000016c56-6.dat	family_gh0strat
behavioral1/memory/2780-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-47-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2620-21-0x0000000010000000-0x00000000101B6000-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

Sets DLL path for service in the 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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259403594.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
2104	R.exe
2620	N.exe
2740	TXPlatfor.exe
2780	TXPlatfor.exe
2076	HD_4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
2080	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
2104	R.exe
2936	svchost.exe
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
2740	TXPlatfor.exe
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
2936	svchost.exe
2080	Remote Data.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2780-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2620-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2620-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259403594.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
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2700	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2780	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2620	N.exe
Token: SeLoadDriverPrivilege	2780	TXPlatfor.exe
Token: 33	2780	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2780	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2104	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	28
PID 2012 wrote to memory of 2104	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	28
PID 2012 wrote to memory of 2104	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	28
PID 2012 wrote to memory of 2104	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	28
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2012 wrote to memory of 2620	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	31
PID 2620 wrote to memory of 2652	2620	N.exe	33
PID 2620 wrote to memory of 2652	2620	N.exe	33
PID 2620 wrote to memory of 2652	2620	N.exe	33
PID 2620 wrote to memory of 2652	2620	N.exe	33
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2740 wrote to memory of 2780	2740	TXPlatfor.exe	35
PID 2012 wrote to memory of 2076	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	36
PID 2012 wrote to memory of 2076	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	36
PID 2012 wrote to memory of 2076	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	36
PID 2012 wrote to memory of 2076	2012	4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe	36
PID 2652 wrote to memory of 2700	2652	cmd.exe	37
PID 2652 wrote to memory of 2700	2652	cmd.exe	37
PID 2652 wrote to memory of 2700	2652	cmd.exe	37
PID 2652 wrote to memory of 2700	2652	cmd.exe	37
PID 2936 wrote to memory of 2080	2936	svchost.exe	38
PID 2936 wrote to memory of 2080	2936	svchost.exe	38
PID 2936 wrote to memory of 2080	2936	svchost.exe	38
PID 2936 wrote to memory of 2080	2936	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
"C:\Users\Admin\AppData\Local\Temp\4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- 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:2104
- 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:2620
- - 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:2652
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2700
- C:\Users\Admin\AppData\Local\Temp\HD_4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
  C:\Users\Admin\AppData\Local\Temp\HD_4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
  2⤵
  - Executes dropped EXE
  PID:2076

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1676

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:2936
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259403594.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2080

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2740
- 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:2780

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_4d8bdf58266d68fd74b9f504e654c86f46d849aaa44459b311b7a7e89a6c470f.exe
Size 859KB
SHA256 002c7fbbf88006ee4fffc5b01a7966f21cc275b20a3aa021bc0002eaff2c8f91
MD5 1c0852b5234e0d596cf7d41d6969198a
SHA1 9b5b08c8605af03c83c2c282a4d4de578ea5d268
SHA512 e703e6fe5539cb05438a66db916074c0bc051da7c4b1752199ae67e656487d64e378d796f98cb48a133792a8d87d8905fb04aeaac15da0f0b2184e0238737033
SSDEEP 12288:gkGhWj+5Vq0+A765nkzoq8nzd9+t+DIt0TxwUZ4Sq6F0h/C:gkGhWj+5F+uLZCD+tKIyTxKSs/C
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 448KB
SHA256 bbed924c87bfe33aefd1151a89ade7c67ef49ef14bc90f1f323df152f7b75427
MD5 ab22b21fca8473485ea7ad58170032e2
SHA1 a7245a2c7a3a014e45e141b522317cfd0de6b7e5
SHA512 97e589610537adf769a3c2858c42d42ff822fc72fca448d786dfd0c2d4d9d958a100b3e66ed8083ebf6edab2dc295d3b7a993b068e5f4c2ccc79709fd5497a6d
SSDEEP 6144:UCwsqHYplzKmxRNwrO3V9z9FozoHJ8SupFE2WbP/jMY/VYGHu6YSrVS:UCwsq4fzKmxbQOszJA2kIvGO6YP
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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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 43KB
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
SSDEEP 768:mD+ellQvZSazSRqbSEln5IyYpamDjobj8SpM:E+QWvZhSRqln5IUmDjoXV
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path \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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259403594.txt

Path \Windows\SysWOW64\259403594.txt
Size 899KB
SHA256 58418800d27d064d24a70e5bd0d3265456861d23ed3100879e7146f7692c6068
MD5 3b84ef9a313b806a2cf12e692346db46
SHA1 7e705580f20a99505dac28cac28c9098391e0d2e
SHA512 316030dccda5630ce4a5c03542e6f3cd48415760339cd483910e3ff551efbcf1420b396c466b326e92809e682fffdd2de33f334394a081b13b755340762d6fc7
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXw:7wqd87Vw
MD5 SHA1 SHA512 SSDEEP

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memory/2620-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2620-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2620-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-47-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-39-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2780-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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