gh0strat | 07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f

General

Target

07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe
Size

611KB
MD5

125f71ce4ebd01c3cf45b8cd48df93de
SHA1

1887c2291d49fe802691a47ed94efc4de121f03f
SHA256

07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f
SHA512

4c53909577fc2413a14736e97cfb472c9c24f7530fa1d4b9c5f212bff570e82dde8d6761a296d8fe7fab85c94c721308bd71e0bb2c842b8b44b463e4aeeb11d9
SSDEEP

12288:SFpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:SFmShDrngEUkDaiJfpSaoNRpMCe8CM8T

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1208-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1208-18-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-22-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1096-38-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/1208-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1208-18-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/1096-20-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/3596-22-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/3596-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1096-38-0x0000000000400000-0x0000000000585000-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
3596	Dtldt.exe
1096	Dtldt.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Dtldt.exe	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe
File created	C:\Windows\SysWOW64\Dtldt.exe	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1208-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/files/0x000c000000023b21-9.dat	upx
behavioral2/memory/1208-18-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/1096-20-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/3596-22-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/1096-38-0x0000000000400000-0x0000000000585000-memory.dmp	upx

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	Dtldt.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	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.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
4612	cmd.exe
1920	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1920	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1096	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1208	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe
Token: SeLoadDriverPrivilege	1096	Dtldt.exe
Token: 33	1096	Dtldt.exe
Token: SeIncBasePriorityPrivilege	1096	Dtldt.exe
Token: 33	1096	Dtldt.exe
Token: SeIncBasePriorityPrivilege	1096	Dtldt.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 4612	1208	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe	83
PID 1208 wrote to memory of 4612	1208	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe	83
PID 1208 wrote to memory of 4612	1208	07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe	83
PID 3596 wrote to memory of 1096	3596	Dtldt.exe	85
PID 3596 wrote to memory of 1096	3596	Dtldt.exe	85
PID 3596 wrote to memory of 1096	3596	Dtldt.exe	85
PID 4612 wrote to memory of 1920	4612	cmd.exe	87
PID 4612 wrote to memory of 1920	4612	cmd.exe	87
PID 4612 wrote to memory of 1920	4612	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe
"C:\Users\Admin\AppData\Local\Temp\07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208
- 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\07426F~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4612
- - 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:1920

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:3596
- 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:1096

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
611KB

MD5
125f71ce4ebd01c3cf45b8cd48df93de

SHA1
1887c2291d49fe802691a47ed94efc4de121f03f

SHA256
07426fd6f4c55e5e7ed9d835fe90810ba6df3156c9c8f24c0260b0062c64636f

SHA512
4c53909577fc2413a14736e97cfb472c9c24f7530fa1d4b9c5f212bff570e82dde8d6761a296d8fe7fab85c94c721308bd71e0bb2c842b8b44b463e4aeeb11d9

Download Submit
memory/1096-20-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/1096-38-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/1208-0-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/1208-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1208-18-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/3596-22-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/3596-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads