gh0strat | c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d

General

Target

c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe
Size

491KB
MD5

9d56dd06dd5527d9936495dbd66dc72a
SHA1

4bd2649d02cb60b7fa3ec40007966d6ae56c2b87
SHA256

c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d
SHA512

9a4aa46e3e4b95f03d25faf06c7aac6071e47610d61284795f715e7c2ece287928b083decda6552d3c0fa060918aee4b69c48f2b498a045c19141633342bb749
SSDEEP

6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2Rr6lZv:oDR+u8pfjYMMWNvdhUSByFPzlv

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2032-5-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2032-6-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2032-3-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2032-2-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/3016-24-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2108-19-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/3016-26-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2108-14-0x0000000010000000-0x00000000101D0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2032-5-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2032-6-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2032-3-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2032-2-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/3016-24-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2108-19-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/3016-26-0x0000000010000000-0x00000000101D0000-memory.dmp	family_gh0strat
behavioral1/memory/2108-14-0x0000000010000000-0x00000000101D0000-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
2680	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2108	Phxph.exe
3016	Phxph.exe

Loads dropped DLL 1 IoCs

pid	Process
2108	Phxph.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2032-5-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2032-6-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2032-3-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2032-2-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2032-0-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/3016-24-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2108-19-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/3016-26-0x0000000010000000-0x00000000101D0000-memory.dmp	upx
behavioral1/memory/2108-14-0x0000000010000000-0x00000000101D0000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Phxph.exe	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe
File opened for modification	C:\Program Files\Phxph.exe	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.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	Phxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phxph.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
2804	PING.EXE
2680	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2804	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2032	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2680	2032	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe	31
PID 2032 wrote to memory of 2680	2032	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe	31
PID 2032 wrote to memory of 2680	2032	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe	31
PID 2032 wrote to memory of 2680	2032	c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe	31
PID 2108 wrote to memory of 3016	2108	Phxph.exe	32
PID 2108 wrote to memory of 3016	2108	Phxph.exe	32
PID 2108 wrote to memory of 3016	2108	Phxph.exe	32
PID 2108 wrote to memory of 3016	2108	Phxph.exe	32
PID 2680 wrote to memory of 2804	2680	cmd.exe	34
PID 2680 wrote to memory of 2804	2680	cmd.exe	34
PID 2680 wrote to memory of 2804	2680	cmd.exe	34
PID 2680 wrote to memory of 2804	2680	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe
"C:\Users\Admin\AppData\Local\Temp\c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- 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\C7961A~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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:2804

C:\Program Files\Phxph.exe
"C:\\Program Files\\Phxph.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Program Files\Phxph.exe
  "C:\Program Files\Phxph.exe" -acsi
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3016

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\Phxph.exe

Filesize
491KB

MD5
9d56dd06dd5527d9936495dbd66dc72a

SHA1
4bd2649d02cb60b7fa3ec40007966d6ae56c2b87

SHA256
c7961a9dcce48cc239c0751e0ac766dc0ec05424b1e2cf4d9c62e257ba484a2d

SHA512
9a4aa46e3e4b95f03d25faf06c7aac6071e47610d61284795f715e7c2ece287928b083decda6552d3c0fa060918aee4b69c48f2b498a045c19141633342bb749

Download Submit
memory/2032-5-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2032-6-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2032-3-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2032-2-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2032-0-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2108-19-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/2108-14-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/3016-24-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download
memory/3016-26-0x0000000010000000-0x00000000101D0000-memory.dmp

Filesize
1.8MB

Download

Analysis

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