gh0strat | 9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b

General

Target

9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
Size

4.8MB
MD5

182fb268866adc71cd32f2d8901f50f1
SHA1

68d33d098707f01dc6f4548e4256a2ee15b1c8dd
SHA256

9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b
SHA512

da2cd3bd743c1610d15947a89dc7fd6efaeec5dac7040ce425d87395109a7e3db032d9327bce45a369c166c124a62debc30603a8d21f03f412f13b688ffa57a0
SSDEEP

49152:CQZAdVyVT9n/Gg0P+WhoDjkbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8w:bGdVyVT9nOgmhijkbXsPN5kiQaZ56

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4248-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4248-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4248-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2196-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2196-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2196-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral2/memory/4248-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4248-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4248-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x000700000002345a-24.dat	family_gh0strat
behavioral2/memory/3596-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2196-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2196-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2196-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2196-38-0x0000000010000000-0x00000000101B6000-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

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
4248	svchost.exe
3596	TXPlatforn.exe
4612	svchos.exe
2196	TXPlatforn.exe
2432	HD_9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe

Loads dropped DLL 1 IoCs

pid	Process
4612	svchos.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4248-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4248-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4248-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4248-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2196-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2196-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2196-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2196-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240624328.txt	svchos.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3600	4612	WerFault.exe	85
2744	4612	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 7 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	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.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
1424	PING.EXE
3760	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1424	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2196	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4248	svchost.exe
Token: SeLoadDriverPrivilege	2196	TXPlatforn.exe
Token: 33	2196	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2196	TXPlatforn.exe
Token: 33	2196	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2196	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 4248	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	82
PID 936 wrote to memory of 4248	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	82
PID 936 wrote to memory of 4248	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	82
PID 4248 wrote to memory of 3760	4248	svchost.exe	84
PID 4248 wrote to memory of 3760	4248	svchost.exe	84
PID 4248 wrote to memory of 3760	4248	svchost.exe	84
PID 936 wrote to memory of 4612	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	85
PID 936 wrote to memory of 4612	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	85
PID 936 wrote to memory of 4612	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	85
PID 3596 wrote to memory of 2196	3596	TXPlatforn.exe	86
PID 3596 wrote to memory of 2196	3596	TXPlatforn.exe	86
PID 3596 wrote to memory of 2196	3596	TXPlatforn.exe	86
PID 3760 wrote to memory of 1424	3760	cmd.exe	92
PID 3760 wrote to memory of 1424	3760	cmd.exe	92
PID 3760 wrote to memory of 1424	3760	cmd.exe	92
PID 936 wrote to memory of 2432	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	97
PID 936 wrote to memory of 2432	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	97
PID 936 wrote to memory of 2432	936	9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe	97

C:\Users\Admin\AppData\Local\Temp\9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
"C:\Users\Admin\AppData\Local\Temp\9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:936
- 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:4248
- - 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:3760
  - - 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:1424
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:4612
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 448
    3⤵
    - Program crash
    PID:3600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 396
    3⤵
    - Program crash
    PID:2744
- C:\Users\Admin\AppData\Local\Temp\HD_9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
  C:\Users\Admin\AppData\Local\Temp\HD_9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2432

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3596
- 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:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4612 -ip 4612
1⤵
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4612 -ip 4612
1⤵
PID:3492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_9c66a38644315af7c838bb0585ab75085b46a70a0c6682c8d049e46d5eb3cc0b.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCXA940.tmp

Filesize
1.7MB

MD5
19186622ccc6971e1caceb880089a96d

SHA1
3cdf6c0bb6f8255d3d4e3154cdf1f6211b206fbb

SHA256
1f5cde643ed832daa746672056802bee63825af233b8b12703e7d8b869579cf4

SHA512
00582c9a25cc5d274ac351d2c4bfbf4c9ef5d64f702c5d4092c92ee6a1d83e2e647abd74b0e2019207e6ed8c6698ef0049324783f7238493edf1349f7901f625

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
C:\Windows\SysWOW64\240624328.txt

Filesize
50KB

MD5
f3e66702f612e5265b55dde29011f2b3

SHA1
5b01e353657e1d328eafdb2f3dca7214776d9db1

SHA256
7e59875dff7ea18ea945efa5bc68848106aba47c0a05ab851a805a46ddc276eb

SHA512
09b8aab974b8dbeb2b93ce87acce2a6f8af19f041d64ea5a610fc650a1ac80cfe6f4e7c09e26ceca28bc537259f0f5694ebc7e49b8e8cd4d70a0159110a26147

Download Submit
memory/2196-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2196-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2196-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2196-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3596-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3596-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3596-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3596-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3596-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4248-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4248-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4248-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4248-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads