gh0strat | b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 03:16

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General

Target

b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
Size

1.8MB
MD5

5368eb0c8b5931bd23591f572dfaa39e
SHA1

44333079e9af018cea76297fdf2ff3ae05bae95c
SHA256

b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3
SHA512

f6819cdad3fe7642d68ecb96609e8e4b5432a83431323b0d889cc15c2eaf9b66714343948f38b1bae1c7412593ad586e72defefc625d739e61a2f9fd2e7b99aa
SSDEEP

24576:sQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVlwV1Dfun2b:sQZAdVyVT9n/Gg0P+WhoLDmn2b

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
behavioral1/memory/1704-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1704-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1704-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2688-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2688-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3000-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3000-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3000-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/1704-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1704-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1704-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2688-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2688-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3000-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3000-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0006000000019244-38.dat	family_gh0strat
behavioral1/memory/3000-40-0x0000000010000000-0x00000000101B6000-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	TXPlatforn.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\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\259452969.txt"	svchos.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"	TXPlatforn.exe

Executes dropped EXE 5 IoCs

pid	Process
1704	svchost.exe
2688	TXPlatforn.exe
2660	svchos.exe
3000	TXPlatforn.exe
1372	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 7 IoCs

pid	Process
1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
2688	TXPlatforn.exe
2660	svchos.exe
1688	svchost.exe
1688	svchost.exe
1372	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1704-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1704-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1704-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1704-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2688-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2688-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3000-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3000-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3000-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\259452969.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.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	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
2476	PING.EXE
2536	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2476	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3000	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1704	svchost.exe
Token: SeLoadDriverPrivilege	3000	TXPlatforn.exe
Token: 33	3000	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3000	TXPlatforn.exe
Token: 33	3000	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3000	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1760 wrote to memory of 1704	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	30
PID 1704 wrote to memory of 2536	1704	svchost.exe	32
PID 1704 wrote to memory of 2536	1704	svchost.exe	32
PID 1704 wrote to memory of 2536	1704	svchost.exe	32
PID 1704 wrote to memory of 2536	1704	svchost.exe	32
PID 1760 wrote to memory of 2660	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	34
PID 1760 wrote to memory of 2660	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	34
PID 1760 wrote to memory of 2660	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	34
PID 1760 wrote to memory of 2660	1760	b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe	34
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2688 wrote to memory of 3000	2688	TXPlatforn.exe	35
PID 2536 wrote to memory of 2476	2536	cmd.exe	36
PID 2536 wrote to memory of 2476	2536	cmd.exe	36
PID 2536 wrote to memory of 2476	2536	cmd.exe	36
PID 2536 wrote to memory of 2476	2536	cmd.exe	36
PID 1688 wrote to memory of 1372	1688	svchost.exe	39
PID 1688 wrote to memory of 1372	1688	svchost.exe	39
PID 1688 wrote to memory of 1372	1688	svchost.exe	39
PID 1688 wrote to memory of 1372	1688	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe
"C:\Users\Admin\AppData\Local\Temp\b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.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:1704
- - 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\svchost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - 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:2476
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.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:2660

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.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:3000

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:616

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259452969.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1372

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

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

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
1.8MB

MD5
5368eb0c8b5931bd23591f572dfaa39e

SHA1
44333079e9af018cea76297fdf2ff3ae05bae95c

SHA256
b15a9efcdf8b209924b7f280524300b8279536ee2ebf28dfa961d5d38c49bbb3

SHA512
f6819cdad3fe7642d68ecb96609e8e4b5432a83431323b0d889cc15c2eaf9b66714343948f38b1bae1c7412593ad586e72defefc625d739e61a2f9fd2e7b99aa

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259452969.txt

Filesize
50KB

MD5
da7cd4a8441dd18c08850e7dc991700c

SHA1
96b3f79d1f8bfd04188d0402b8a1b94675571b59

SHA256
9aa51663f2146557675d91c8df733c2299535b5d3a445fe846289979bb4e0bb5

SHA512
81fda8a4d6ff9922f8574d2b2086c7bf3708597237cc121f164b728ccf305e2ed7e72ce1bbbdc5ef1b522ee1918b2ba65660bffbef838356983307e5a1bbb3b2

Download Submit
\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1704-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1704-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1704-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1704-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2688-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2688-31-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads