gh0strat | 57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900

General

Target

57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe
Size

1.3MB
MD5

425b8f406711fdbcdf2153565dda2df1
SHA1

19d60d32f6924e12dc33d800657be814e1b9f4b2
SHA256

57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900
SHA512

6601e9d377575497c76b4af875d9715d0119b3c0f0a88be0869a8c390ef2353452dc4d2ebe8d32a59b825804f22b3f8a22f4d449d54e418706daaa985f6da40f
SSDEEP

24576:5OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNV:0HPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2604-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2896-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2604-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2896-19-0x0000000010000000-0x000000001019F000-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

Deletes itself 1 IoCs

pid	Process
2884	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2188	Dtldt.exe
2896	Dtldt.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	Dtldt.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AppPatch\Dtldt.exe	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Dtldt.exe	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.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	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.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	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
2884	cmd.exe
408	PING.EXE

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Dtldt.exe
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
408	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2896	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2604	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe
Token: SeLoadDriverPrivilege	2896	Dtldt.exe
Token: 33	2896	Dtldt.exe
Token: SeIncBasePriorityPrivilege	2896	Dtldt.exe
Token: 33	2896	Dtldt.exe
Token: SeIncBasePriorityPrivilege	2896	Dtldt.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2884	2604	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe	31
PID 2604 wrote to memory of 2884	2604	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe	31
PID 2604 wrote to memory of 2884	2604	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe	31
PID 2604 wrote to memory of 2884	2604	57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe	31
PID 2188 wrote to memory of 2896	2188	Dtldt.exe	32
PID 2188 wrote to memory of 2896	2188	Dtldt.exe	32
PID 2188 wrote to memory of 2896	2188	Dtldt.exe	32
PID 2188 wrote to memory of 2896	2188	Dtldt.exe	32
PID 2884 wrote to memory of 408	2884	cmd.exe	34
PID 2884 wrote to memory of 408	2884	cmd.exe	34
PID 2884 wrote to memory of 408	2884	cmd.exe	34
PID 2884 wrote to memory of 408	2884	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe
"C:\Users\Admin\AppData\Local\Temp\57e44f34c18de50d0967b6092455046221f2f5aa9ed2c404e00a5734c1850900.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2604
- 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\57E44F~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2884
- - 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:408

C:\Program Files (x86)\AppPatch\Dtldt.exe
"C:\Program Files (x86)\AppPatch\Dtldt.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- 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:2896

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/2604-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2896-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads