gh0strat | 13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23

General

Target

13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe
Size

1.4MB
MD5

dea28e82141c270ec9fd9436c9b8aa0a
SHA1

d95a3f613724d9fd52f300880f96fc5598e430a3
SHA256

13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23
SHA512

44a04bd5b915ddf6ec9a02dbd9dc2b527bb9caf02fb9d5cc64b2dc8f985be29413c7623dd3f4029269574b022636b8a1e3e49fa82fbe6786fa0f0134c0245101
SSDEEP

24576:F39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:59qHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/4916-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1116-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2204-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4916-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1116-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2204-17-0x0000000010000000-0x000000001019F000-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

Processes:

Dtldt.exe

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

Processes:

Dtldt.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Dtldt.exe
Executes dropped EXE 2 IoCs

Processes:

Dtldt.exeDtldt.exe

pid process

1116 Dtldt.exe
2204 Dtldt.exe

description	ioc	process
File created	C:\Windows\system32\drivers\QAssist.sys	Dtldt.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	Dtldt.exe

pid	process
1116	Dtldt.exe
2204	Dtldt.exe

Drops file in System32 directory 2 IoCs

Processes:

13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Dtldt.exe	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe
File opened for modification	C:\Windows\SysWOW64\Dtldt.exe	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.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

Processes:

PING.EXE13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exeDtldt.exeDtldt.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

Processes:

cmd.exePING.EXE

pid process

4252 cmd.exe
2772 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2772 PING.EXE
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

Dtldt.exe

pid process

2204 Dtldt.exe

pid	process
4252	cmd.exe
2772	PING.EXE

pid	process
2772	PING.EXE

pid	process
2204	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exeDtldt.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	4916	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe
Token: SeLoadDriverPrivilege	2204	Dtldt.exe
Token: 33	2204	Dtldt.exe
Token: SeIncBasePriorityPrivilege	2204	Dtldt.exe
Token: 33	2204	Dtldt.exe
Token: SeIncBasePriorityPrivilege	2204	Dtldt.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exeDtldt.execmd.exe

description	pid	process	target process
PID 4916 wrote to memory of 4252	4916	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe	cmd.exe
PID 4916 wrote to memory of 4252	4916	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe	cmd.exe
PID 4916 wrote to memory of 4252	4916	13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe	cmd.exe
PID 1116 wrote to memory of 2204	1116	Dtldt.exe	Dtldt.exe
PID 1116 wrote to memory of 2204	1116	Dtldt.exe	Dtldt.exe
PID 1116 wrote to memory of 2204	1116	Dtldt.exe	Dtldt.exe
PID 4252 wrote to memory of 2772	4252	cmd.exe	PING.EXE
PID 4252 wrote to memory of 2772	4252	cmd.exe	PING.EXE
PID 4252 wrote to memory of 2772	4252	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe
"C:\Users\Admin\AppData\Local\Temp\13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4916
- 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\13FC82~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4252
- - 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:2772

C:\Windows\SysWOW64\Dtldt.exe
C:\Windows\SysWOW64\Dtldt.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\Dtldt.exe
  C:\Windows\SysWOW64\Dtldt.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2204

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:\Windows\SysWOW64\Dtldt.exe

Filesize
1.4MB

MD5
dea28e82141c270ec9fd9436c9b8aa0a

SHA1
d95a3f613724d9fd52f300880f96fc5598e430a3

SHA256
13fc82700e8cbcfd051c643b2cbfffe57597b7fe042e481d00877ad74998ad23

SHA512
44a04bd5b915ddf6ec9a02dbd9dc2b527bb9caf02fb9d5cc64b2dc8f985be29413c7623dd3f4029269574b022636b8a1e3e49fa82fbe6786fa0f0134c0245101

Download Submit
memory/1116-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2204-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4916-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads