gh0strat | eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a

Analysis

max time kernel
150s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2024, 09:06

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General

Target
eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
Size 4.0MB
Sample240526-k21xesdb81
SHA256 eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a
MD5 26ab20d3e942f001d81bd36f07de22da
SHA1 325ffa56879fc6aeb4aac3ee5fae414ce4f749f4
SHA512 4906b7c3f0366548756f44c3a26c86e05ab82267f7d35c3420ce637f90636fbf4339b0ec3cdaf3b34aa862e569559dc18bedb7124381c7b8a9143c00865e13a3
SSDEEP 49152:GCwsbCANnKXferL7Vwe/Gg0P+WhWsNw4M6l0xhcO35JpJ9c43ujmFVdqLB3Me:xws2ANnKXOaeOgmhWxv6l0xhz3wmY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1204-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1204-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1204-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1568-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1568-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4984-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4984-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023446-5.dat	family_gh0strat
behavioral2/memory/1204-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1204-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1204-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1568-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1568-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4984-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4984-43-0x0000000010000000-0x00000000101B6000-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\\240609953.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
4080	R.exe
1204	N.exe
1568	TXPlatfor.exe
3228	HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
4984	TXPlatfor.exe
3460	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4080	R.exe
5112	svchost.exe
3460	Remote Data.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1204-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1204-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1204-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1204-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1568-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1568-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1568-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4984-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4984-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240609953.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
2880	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4984	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1204	N.exe
Token: SeLoadDriverPrivilege	4984	TXPlatfor.exe
Token: 33	4984	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4984	TXPlatfor.exe
Token: 33	4984	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4984	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
3228	HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
3228	HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 4080	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	86
PID 2220 wrote to memory of 4080	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	86
PID 2220 wrote to memory of 4080	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	86
PID 2220 wrote to memory of 1204	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	89
PID 2220 wrote to memory of 1204	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	89
PID 2220 wrote to memory of 1204	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	89
PID 1204 wrote to memory of 1532	1204	N.exe	93
PID 1204 wrote to memory of 1532	1204	N.exe	93
PID 1204 wrote to memory of 1532	1204	N.exe	93
PID 2220 wrote to memory of 3228	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	94
PID 2220 wrote to memory of 3228	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	94
PID 2220 wrote to memory of 3228	2220	eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe	94
PID 1568 wrote to memory of 4984	1568	TXPlatfor.exe	95
PID 1568 wrote to memory of 4984	1568	TXPlatfor.exe	95
PID 1568 wrote to memory of 4984	1568	TXPlatfor.exe	95
PID 1532 wrote to memory of 2880	1532	cmd.exe	97
PID 1532 wrote to memory of 2880	1532	cmd.exe	97
PID 1532 wrote to memory of 2880	1532	cmd.exe	97
PID 5112 wrote to memory of 3460	5112	svchost.exe	101
PID 5112 wrote to memory of 3460	5112	svchost.exe	101
PID 5112 wrote to memory of 3460	5112	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
"C:\Users\Admin\AppData\Local\Temp\eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220
- 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:4080
- 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:1204
- - 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:1532
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2880
- C:\Users\Admin\AppData\Local\Temp\HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
  C:\Users\Admin\AppData\Local\Temp\HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3228

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2528

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:5112
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240609953.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3460

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1568
- 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:4984

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_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.3MB
SHA256 0f5a03deefd0449816ce50800abf259d151dec333e495affbb64ac0a5d5e4dc6
MD5 eda5eb17dd2e5b87e60ef4db5ac39401
SHA1 2d0a89abf1b17e327c483c7b958bdd0eaec5f2e5
SHA512 880cca5fe8e631cdd3c233b874c020572fc2f13233ddbc43af83e59eacaabeeaebd623e38ab39fa23e5a6cb7e17b82f9f7abf8ee87082e576849ec3a593ec995
SSDEEP 24576:GCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHH:GCwsbCANnKXferL7Vwe/Gg0P+WhWD
MD5 SHA1 SHA512 SSDEEP

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HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_eb3c40aea6ce5542af11670a08b9bce21b652ff7fa6b73fbd9f361b038a5dc5a.exe
Size 1.7MB
SHA256 1e1fe51b830780e411b2044d4f2fb129a2e115c84526ba66fb790f3d6ed917cc
MD5 74df0af1bad506944c27f61976f8d866
SHA1 dcfb37161fda88576c7cac1929d4418149b6d4e3
SHA512 ebf13a7800a4cf00fd746d0b05e454768821db78578dec1bb1ce15944a7ba5a986add0123ab201c2a5024ca5c5dc47efb66e310cf7b239dee02fe801f54a2681
SSDEEP 49152:7Nw4M6l0xhcO35JpJ9c43ujmFVdqLB3Me:6v6l0xhz3wmY
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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240609953.txt

Path C:\Windows\SysWOW64\240609953.txt
Size 899KB
SHA256 0a5a5deda0901626a98dee78a9be022bd5442f19cdd343bde0395ca7fc9c8f27
MD5 989bc06647db3184469d7fe3f7e81918
SHA1 86e27129f31de67dfa58ab80e0ad90254dd63667
SHA512 70552bae9d7588c50b4e3cdeff6653ec4eb4285b87e4ad9f57c8c846031515643e54301dd228df047d8ec1d1a5d7da9a6acbd867862dc4a8fac77309c6a69ae9
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PX+:7wqd87V+
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/1204-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1204-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1204-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1204-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1568-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1568-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1568-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4984-41-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4984-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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