gh0strat | cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd

General

Target

cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
Size

3.3MB
MD5

b9c8b1e894fbb5e3fd551f0e2f75a8ef
SHA1

f2cf0067b87925785e9ea230c836eb05c1e19657
SHA256

cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd
SHA512

3edb9d6913fe540b2758e6fdf877ddb632bad5a3b50db72ec5841860f0d918399b4632d0f3d21c3b0c2737daa3165889131c82b65e2f18aa863c16b4009cda82
SSDEEP

49152:YCwsbCANnKXferL7Vwe/Gg0P+Whk4rVJX+csn:zws2ANnKXOaeOgmhk4rV5

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/3000-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3000-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3000-14-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-25-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-50-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-53-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023c41-5.dat	family_gh0strat
behavioral2/memory/3000-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3000-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3000-14-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-25-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-50-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-53-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-23-0x0000000010000000-0x00000000101B6000-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
Gh0strat family
gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.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 5 IoCs

pid	Process
2116	R.exe
3000	N.exe
4788	TXPlatfor.exe
4896	TXPlatfor.exe
2940	HD_cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe

Loads dropped DLL 1 IoCs

pid	Process
2116	R.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240613250.txt	R.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3000-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3000-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3000-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3000-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-25-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-53-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1504	2116	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 6 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.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
4028	PING.EXE
4876	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4028	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4896	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3000	N.exe
Token: SeLoadDriverPrivilege	4896	TXPlatfor.exe
Token: 33	4896	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4896	TXPlatfor.exe
Token: 33	4896	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4896	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2116	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	87
PID 3012 wrote to memory of 2116	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	87
PID 3012 wrote to memory of 2116	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	87
PID 3012 wrote to memory of 3000	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	91
PID 3012 wrote to memory of 3000	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	91
PID 3012 wrote to memory of 3000	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	91
PID 3000 wrote to memory of 4876	3000	N.exe	93
PID 3000 wrote to memory of 4876	3000	N.exe	93
PID 3000 wrote to memory of 4876	3000	N.exe	93
PID 4788 wrote to memory of 4896	4788	TXPlatfor.exe	94
PID 4788 wrote to memory of 4896	4788	TXPlatfor.exe	94
PID 4788 wrote to memory of 4896	4788	TXPlatfor.exe	94
PID 3012 wrote to memory of 2940	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	95
PID 3012 wrote to memory of 2940	3012	cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe	95
PID 4876 wrote to memory of 4028	4876	cmd.exe	98
PID 4876 wrote to memory of 4028	4876	cmd.exe	98
PID 4876 wrote to memory of 4028	4876	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
"C:\Users\Admin\AppData\Local\Temp\cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.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:3012
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2116
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 448
    3⤵
    - Program crash
    PID:1504
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3000
- - 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⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4876
  - - 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:4028
- C:\Users\Admin\AppData\Local\Temp\HD_cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
  C:\Users\Admin\AppData\Local\Temp\HD_cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe
  2⤵
  - Executes dropped EXE
  PID:2940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2116 -ip 2116
1⤵
PID:1044

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4788
- 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:4896

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_X.dat

Filesize
2.5MB

MD5
671479ac94b68a0bc5a09cd00317ebaf

SHA1
9db39d5ac879ff6fb9ee26856d175676e0c516de

SHA256
c32e977375778743daae2acc0683288ae961f4c48168f99502f703d7af8e8bca

SHA512
345c28028c422e3c85b06d5b024b5e69faf432761e72afdefc69203c48b1b7e2e5d16447bdb66599e1292b3d6a51b28350d5bcba5ba3980eca539aa3e44f94cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_cb2d74d98d1667d7624f7770a9a9cab9de5aa487bcde05ff38bfd31d9431a9bd.exe

Filesize
889KB

MD5
c818f7781a560c999fbd11b358f877a6

SHA1
2ced2227c6c952effefce8ca8756520a329b749f

SHA256
ff221c8861dccc883529db091e6ad6fb5531aa829e3181e5e90c0f6a3070e309

SHA512
abc754a6c3be2f60fa11cdb06806bb5e767c0ce97b6142d123a0c72070919e8cbda165fe67dc80ec3478925af3179b1d4535cb64c639205a30333f3bd4c274f6

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240613250.txt

Filesize
899KB

MD5
474a586388a9f39401dd6bf2812bf48f

SHA1
48fbfa03e17239607ae3214b8102846b4c32a868

SHA256
8014d736f11c8eee6c5edc932fabe77c92a7138f674f11769d080c3da1287837

SHA512
7488451a84a9da117ec452757d3596c7415f7219d3e0f1fd3df79b1c6403137ee8bf8a63283e5b6b3a56618341268145c5d1f26f94d0b7e1fc69c94ed0adb4fd

Download Submit
memory/3000-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3000-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4788-25-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4788-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4788-24-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4788-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4788-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4896-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4896-50-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4896-53-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads