gh0strat | a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26/06/2024, 00:35

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General

Target

a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
Size

2.8MB
MD5

2a21b7f58a3eeea46c60ea02cbd6e595
SHA1

17d8ef4b73fa9de9d3f978bf807403be67b0d1ff
SHA256

a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b
SHA512

23547f72223b6abfa15f7c7acfb495cf59ff2d440fdaeffbcb6e54babedd9af9fea2ed703b1adc6069f49f1603b9298d3933d5657af45ceebd441f1d9262d073
SSDEEP

24576:0CwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHd:0CwsbCANnKXferL7Vwe/Gg0P+WhTho

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1460-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1460-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2780-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015cb7-6.dat	family_gh0strat
behavioral1/memory/1460-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1460-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2780-49-0x0000000010000000-0x00000000101B6000-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\\259398478.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
2364	R.exe
1460	N.exe
2104	TXPlatfor.exe
2780	TXPlatfor.exe
2888	HD_a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
2636	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
2364	R.exe
1532	svchost.exe
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
2104	TXPlatfor.exe
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
1532	svchost.exe
2636	Remote Data.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1460-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1460-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1460-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2780-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
File created	C:\Windows\SysWOW64\259398478.txt	R.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1664	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2780	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1460	N.exe
Token: SeLoadDriverPrivilege	2780	TXPlatfor.exe
Token: 33	2780	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2780	TXPlatfor.exe
Token: 33	2780	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2780	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2364	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	28
PID 1520 wrote to memory of 2364	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	28
PID 1520 wrote to memory of 2364	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	28
PID 1520 wrote to memory of 2364	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	28
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1520 wrote to memory of 1460	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	31
PID 1460 wrote to memory of 2772	1460	N.exe	33
PID 1460 wrote to memory of 2772	1460	N.exe	33
PID 1460 wrote to memory of 2772	1460	N.exe	33
PID 1460 wrote to memory of 2772	1460	N.exe	33
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 2104 wrote to memory of 2780	2104	TXPlatfor.exe	34
PID 1520 wrote to memory of 2888	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	36
PID 1520 wrote to memory of 2888	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	36
PID 1520 wrote to memory of 2888	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	36
PID 1520 wrote to memory of 2888	1520	a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe	36
PID 2772 wrote to memory of 1664	2772	cmd.exe	37
PID 2772 wrote to memory of 1664	2772	cmd.exe	37
PID 2772 wrote to memory of 1664	2772	cmd.exe	37
PID 2772 wrote to memory of 1664	2772	cmd.exe	37
PID 1532 wrote to memory of 2636	1532	svchost.exe	38
PID 1532 wrote to memory of 2636	1532	svchost.exe	38
PID 1532 wrote to memory of 2636	1532	svchost.exe	38
PID 1532 wrote to memory of 2636	1532	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
"C:\Users\Admin\AppData\Local\Temp\a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1520
- 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:2364
- 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:1460
- - 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:2772
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1664
- C:\Users\Admin\AppData\Local\Temp\HD_a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
  C:\Users\Admin\AppData\Local\Temp\HD_a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe
  2⤵
  - Executes dropped EXE
  PID:2888

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1744

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:1532
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259398478.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2636

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2104
- 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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
2.7MB

MD5
4a556fbe4faab24b56d47bc19b143963

SHA1
ef58fa14e365c45ef25def19a4aeff02c24ecdf1

SHA256
a2d262939ad3f00faa0f1829b291aed17607378a65c25b31811ed25af25e9388

SHA512
e4e6f66b811b9adc1a8cfa8e78272b180ad7baeaf1e81fb347cecda43ffe2ee758077ae856153fcb357cc74da7c42b8053476b391c421879877c3caf2ebfb2e7

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Users\Admin\AppData\Local\Temp\HD_a9790b002796138c506d6a126ca3ca7b78ef05550cf3af5aa4414b5512e66d6b.exe

Filesize
80KB

MD5
ba0522ee0235ef4e5d033ccd524eb48f

SHA1
3f3676d9723c6c4b7f8ce15f4713522d8875f076

SHA256
c2ed8491e853fc8e7a211dabc91d4df1ff3678b5e4cf091e5cec6ac963eea359

SHA512
fe4f3fbc5160157e4fd7b69223fcc3d1774f7938f5751cb03dad014234add79865075df3db20fd2decab1cb5e83b53693668e7773620d3c7787e369d24c86020

Download Submit
\Users\Admin\AppData\Local\Temp\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
\Windows\SysWOW64\259398478.txt

Filesize
899KB

MD5
2428b754117a0ffb691e4f0842c8abe4

SHA1
91ae62d662063c83c0d24e1d89931611d2ccf9e2

SHA256
c0cfa48a2e5ef1b75c6ecb208abdf572c12917e3d3478a2df868ed0c63d65727

SHA512
2fb69956082610ea8aa6a3c817c26c536807d9bd68e8275f54ac0a5072b71b686e4b93c1cdfddf8f1fc621c6b23c7bb9d3f06caf8bbbb97f27b391c0f6f5da42

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1460-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1460-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1460-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2780-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

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

Filesize
1.7MB

Download
memory/2780-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download