gh0strat | 0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f

General

Target

0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe
Size

491KB
MD5

77b621c8ae246da4619c8315c6996576
SHA1

43b19a006a6e8c864b33f63604c3d5b94b26a410
SHA256

0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f
SHA512

a28bdb4b08c732558e97c6efc71a32d2e7681d770c68eacc78e2dace03f78e2dbf4abfaa66d1b2e0e69cefe05955d7a2cbffb88dbad3957e48d63d68af4f0f46
SSDEEP

6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2RD6lZv:oDR+u8pfjYMMWNvdhUSByFPzdv

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2080-5-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2080-2-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2080-6-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2080-3-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/1900-27-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2536-26-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/1900-25-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2536-14-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2536-16-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2080-5-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2080-2-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2080-6-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2080-3-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/1900-27-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2536-26-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/1900-25-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2536-14-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2536-16-0x0000000010000000-0x00000000101D0000-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

Deletes itself 1 IoCs

pid	Process
2652	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2536	Deuvw.exe
1900	Deuvw.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	Deuvw.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2080-0-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2080-5-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2080-2-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2080-6-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2080-3-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/1900-27-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2536-26-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/1900-25-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2536-14-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2536-16-0x0000000010000000-0x00000000101D0000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Deuvw.exe	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe
File opened for modification	C:\Program Files\Deuvw.exe	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Deuvw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Deuvw.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

pid	Process
2868	PING.EXE
2652	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2868	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2080	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2652	2080	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe	32
PID 2080 wrote to memory of 2652	2080	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe	32
PID 2080 wrote to memory of 2652	2080	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe	32
PID 2080 wrote to memory of 2652	2080	0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe	32
PID 2536 wrote to memory of 1900	2536	Deuvw.exe	33
PID 2536 wrote to memory of 1900	2536	Deuvw.exe	33
PID 2536 wrote to memory of 1900	2536	Deuvw.exe	33
PID 2536 wrote to memory of 1900	2536	Deuvw.exe	33
PID 2652 wrote to memory of 2868	2652	cmd.exe	35
PID 2652 wrote to memory of 2868	2652	cmd.exe	35
PID 2652 wrote to memory of 2868	2652	cmd.exe	35
PID 2652 wrote to memory of 2868	2652	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe
"C:\Users\Admin\AppData\Local\Temp\0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2080
- 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\0CB5C8~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2652
- - 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:2868

C:\Program Files\Deuvw.exe
"C:\\Program Files\\Deuvw.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Program Files\Deuvw.exe
  "C:\Program Files\Deuvw.exe" -acsi
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Program Files\Deuvw.exe

Filesize
491KB

MD5
77b621c8ae246da4619c8315c6996576

SHA1
43b19a006a6e8c864b33f63604c3d5b94b26a410

SHA256
0cb5c8e6987f74a213353851dc12b7b3a08130fd5ebb18f4455c659e8f46442f

SHA512
a28bdb4b08c732558e97c6efc71a32d2e7681d770c68eacc78e2dace03f78e2dbf4abfaa66d1b2e0e69cefe05955d7a2cbffb88dbad3957e48d63d68af4f0f46

Download Submit
memory/1900-27-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/1900-25-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2080-0-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2080-5-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2080-2-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2080-6-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2080-3-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2536-26-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2536-14-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2536-16-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download

Analysis

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