gh0strat | 503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19

General

Target

503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe
Size

539KB
MD5

4fc3bc32ea25b080137dd668154cf99d
SHA1

acf2801abcd0e23505f9c813fc69a5438390b54b
SHA256

503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19
SHA512

0506df5dcada8fc1e2aac5f77e4bb713aad1d00621eb04ee464585f906a79f2254d36fd3969d1249f0bfda472f4d4bce16f49c7685c6b2219691bf853a9abe16
SSDEEP

12288:GhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSi:GUmwrl2Ao7sJNlM7ymsSi

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
behavioral1/memory/2520-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2520-20-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/2056-22-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/2368-30-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral1/memory/2056-40-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2520-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2520-20-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/2368-19-0x0000000001160000-0x00000000012A7000-memory.dmp	family_gh0strat
behavioral1/memory/2056-22-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/2368-30-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral1/memory/2056-40-0x0000000000400000-0x0000000000547000-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	Meume.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"	Meume.exe

Deletes itself 1 IoCs

pid	Process
2272	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2368	Meume.exe
2056	Meume.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	Meume.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2520-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/files/0x0008000000016c4e-9.dat	upx
behavioral1/memory/2520-20-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/2056-22-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/2368-30-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral1/memory/2056-40-0x0000000000400000-0x0000000000547000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AppPatch\Meume.exe	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Meume.exe	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.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	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Meume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Meume.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
2768	PING.EXE
2272	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2768	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2056	Meume.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2520	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe
Token: SeLoadDriverPrivilege	2056	Meume.exe
Token: 33	2056	Meume.exe
Token: SeIncBasePriorityPrivilege	2056	Meume.exe
Token: 33	2056	Meume.exe
Token: SeIncBasePriorityPrivilege	2056	Meume.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2272	2520	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe	32
PID 2520 wrote to memory of 2272	2520	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe	32
PID 2520 wrote to memory of 2272	2520	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe	32
PID 2520 wrote to memory of 2272	2520	503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe	32
PID 2368 wrote to memory of 2056	2368	Meume.exe	33
PID 2368 wrote to memory of 2056	2368	Meume.exe	33
PID 2368 wrote to memory of 2056	2368	Meume.exe	33
PID 2368 wrote to memory of 2056	2368	Meume.exe	33
PID 2272 wrote to memory of 2768	2272	cmd.exe	35
PID 2272 wrote to memory of 2768	2272	cmd.exe	35
PID 2272 wrote to memory of 2768	2272	cmd.exe	35
PID 2272 wrote to memory of 2768	2272	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe
"C:\Users\Admin\AppData\Local\Temp\503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- 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\503D54~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - 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:2768

C:\Program Files (x86)\AppPatch\Meume.exe
"C:\Program Files (x86)\AppPatch\Meume.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Program Files (x86)\AppPatch\Meume.exe
  "C:\Program Files (x86)\AppPatch\Meume.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:2056

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\Meume.exe

Filesize
539KB

MD5
4fc3bc32ea25b080137dd668154cf99d

SHA1
acf2801abcd0e23505f9c813fc69a5438390b54b

SHA256
503d542468a53b3496ba52338b1812cd630f0d0b64bb75a1cc48fb2115bc3f19

SHA512
0506df5dcada8fc1e2aac5f77e4bb713aad1d00621eb04ee464585f906a79f2254d36fd3969d1249f0bfda472f4d4bce16f49c7685c6b2219691bf853a9abe16

Download Submit
memory/2056-22-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2056-40-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2368-19-0x0000000001160000-0x00000000012A7000-memory.dmp

Filesize
1.3MB

Download
memory/2368-30-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2520-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2520-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2520-20-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads