gh0strat | 9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3

General

Target

9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe
Size

11.3MB
MD5

4d27765fc723b1dee9216db931925caa
SHA1

21e9c439faafa751f2c2ad53cbe8feac9f255513
SHA256

9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3
SHA512

3d898c8d3879262eccfbf5f796ba3a4090d085b2803be8468455bbc95f3c4734b48839c3fbf9cbad3af59548e4dfc1e3d58c94d4c0e6a6d68d70aeb74a024e4d
SSDEEP

24576:5OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNVt:0HPkVOBTKb

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1616-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2028-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4284-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1616-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2028-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4284-18-0x0000000010000000-0x000000001019F000-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	Dtldt.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"	Dtldt.exe

Executes dropped EXE 2 IoCs

pid	Process
2028	Dtldt.exe
4284	Dtldt.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AppPatch\Dtldt.exe	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Dtldt.exe	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.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
4464	cmd.exe
3328	PING.EXE

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Dtldt.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Dtldt.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Dtldt.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3328	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4284	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1616	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe
Token: SeLoadDriverPrivilege	4284	Dtldt.exe
Token: 33	4284	Dtldt.exe
Token: SeIncBasePriorityPrivilege	4284	Dtldt.exe
Token: 33	4284	Dtldt.exe
Token: SeIncBasePriorityPrivilege	4284	Dtldt.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 4464	1616	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe	84
PID 1616 wrote to memory of 4464	1616	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe	84
PID 1616 wrote to memory of 4464	1616	9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe	84
PID 2028 wrote to memory of 4284	2028	Dtldt.exe	86
PID 2028 wrote to memory of 4284	2028	Dtldt.exe	86
PID 2028 wrote to memory of 4284	2028	Dtldt.exe	86
PID 4464 wrote to memory of 3328	4464	cmd.exe	87
PID 4464 wrote to memory of 3328	4464	cmd.exe	87
PID 4464 wrote to memory of 3328	4464	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe
"C:\Users\Admin\AppData\Local\Temp\9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616
- 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\9DC0A0~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3328

C:\Program Files (x86)\AppPatch\Dtldt.exe
"C:\Program Files (x86)\AppPatch\Dtldt.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Program Files (x86)\AppPatch\Dtldt.exe
  "C:\Program Files (x86)\AppPatch\Dtldt.exe" -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4284

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 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:\Program Files (x86)\AppPatch\Dtldt.exe

Filesize
11.3MB

MD5
4d27765fc723b1dee9216db931925caa

SHA1
21e9c439faafa751f2c2ad53cbe8feac9f255513

SHA256
9dc0a02861c4b8c90fad773d4521acb187a39f251cc7e984f6ecf94b40c883c3

SHA512
3d898c8d3879262eccfbf5f796ba3a4090d085b2803be8468455bbc95f3c4734b48839c3fbf9cbad3af59548e4dfc1e3d58c94d4c0e6a6d68d70aeb74a024e4d

Download Submit
memory/1616-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2028-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4284-18-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads