gh0strat | c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599

General

Target

c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe
Size

15.4MB
MD5

3907b481feb88a9c7454e45fdfea29f0
SHA1

6b756215b35568bde687c8e2299ad2213bebb830
SHA256

c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599
SHA512

8ecee6c65c47114ae98a87d1e4fc691e28bd77f5755e9efe3ed1778885c8d6f6f6b6eb37537f7896ef4e5ae4cf2cd0a90aebd78d4eb3b6399900a38414e9210c
SSDEEP

393216:PPLvIfjMVueqs57PE5/9K0Ln5z3pHnEwfO43q2:PP8faueh5Gw0Dd31TO462

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3952-7-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit
behavioral2/memory/3952-9-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit
behavioral2/memory/3952-11-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit
behavioral2/memory/4508-22-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit
behavioral2/memory/4508-25-0x0000000010000000-0x00000000101A5000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/3952-8-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/3952-7-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/3952-9-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/3952-11-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/4508-21-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/4508-22-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101A5000-memory.dmp	family_gh0strat
behavioral2/memory/4508-25-0x0000000010000000-0x00000000101A5000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Executes dropped EXE 2 IoCs

pid	Process
3952	winhlp64.exe
4508	winhlp64.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3952-5-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/3952-8-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/3952-7-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/3952-9-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/3952-11-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/4508-18-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/4508-21-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/4508-22-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101A5000-memory.dmp	upx
behavioral2/memory/4508-25-0x0000000010000000-0x00000000101A5000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\xczxd = "C:\\Program Files\\Common Files\\SJervices\\winhlp64.exe"	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\SJervices\winhlp64.exe	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe
File opened for modification	C:\Program Files\Common Files\SJervices\winhlp64.exe	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	3952	winhlp64.exe
Token: SeIncBasePriorityPrivilege	3952	winhlp64.exe
Token: 33	3952	winhlp64.exe
Token: SeIncBasePriorityPrivilege	3952	winhlp64.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe
2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 3952	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	91
PID 2944 wrote to memory of 3952	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	91
PID 2944 wrote to memory of 3952	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	91
PID 2944 wrote to memory of 4508	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	97
PID 2944 wrote to memory of 4508	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	97
PID 2944 wrote to memory of 4508	2944	c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe	97

C:\Users\Admin\AppData\Local\Temp\c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe
"C:\Users\Admin\AppData\Local\Temp\c92b78a713a565438268b38961afb6afcd83d186dad635a242b562e8f1d8a599.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Program Files\Common Files\SJervices\winhlp64.exe
  "C:\Program Files\Common Files\SJervices\winhlp64.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3952
- C:\Program Files\Common Files\SJervices\winhlp64.exe
  "C:\Program Files\Common Files\SJervices\winhlp64.exe"
  2⤵
  - Executes dropped EXE
  PID:4508

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\SJervices\winhlp64.exe

Filesize
410KB

MD5
6b095d4de2a49276e91c0b98041f412b

SHA1
08329285e41b7cba66c4800d7a079273219685dc

SHA256
712d1669f272f6476926ef2f982e0673cd0dd0b3279d9b3ebf5fef012d7fae9e

SHA512
d0b804b523c42d418fb21f844cb197ce966fb4189bb909eca7aa9890f3c101b7b895bfae1e8afd41a2daf9a55806f520c489988a0096ea2bd504444564139d74

Download Submit
C:\Program Files\Common Files\SJervices\winhlp64.exe

Filesize
410KB

MD5
6b095d4de2a49276e91c0b98041f412b

SHA1
08329285e41b7cba66c4800d7a079273219685dc

SHA256
712d1669f272f6476926ef2f982e0673cd0dd0b3279d9b3ebf5fef012d7fae9e

SHA512
d0b804b523c42d418fb21f844cb197ce966fb4189bb909eca7aa9890f3c101b7b895bfae1e8afd41a2daf9a55806f520c489988a0096ea2bd504444564139d74

Download Submit
C:\Program Files\Common Files\SJervices\winhlp64.exe

Filesize
410KB

MD5
6b095d4de2a49276e91c0b98041f412b

SHA1
08329285e41b7cba66c4800d7a079273219685dc

SHA256
712d1669f272f6476926ef2f982e0673cd0dd0b3279d9b3ebf5fef012d7fae9e

SHA512
d0b804b523c42d418fb21f844cb197ce966fb4189bb909eca7aa9890f3c101b7b895bfae1e8afd41a2daf9a55806f520c489988a0096ea2bd504444564139d74

Download Submit
memory/2944-24-0x0000000004370000-0x0000000004371000-memory.dmp

Filesize
4KB

Download
memory/2944-31-0x00000000044C0000-0x00000000044C1000-memory.dmp

Filesize
4KB

Download
memory/2944-38-0x0000000004510000-0x0000000004511000-memory.dmp

Filesize
4KB

Download
memory/2944-37-0x00000000044A0000-0x00000000044A1000-memory.dmp

Filesize
4KB

Download
memory/2944-36-0x0000000004420000-0x0000000004421000-memory.dmp

Filesize
4KB

Download
memory/2944-35-0x0000000004390000-0x0000000004391000-memory.dmp

Filesize
4KB

Download
memory/2944-34-0x0000000004570000-0x0000000004571000-memory.dmp

Filesize
4KB

Download
memory/2944-33-0x0000000004530000-0x0000000004531000-memory.dmp

Filesize
4KB

Download
memory/2944-32-0x0000000004500000-0x0000000004501000-memory.dmp

Filesize
4KB

Download
memory/2944-30-0x0000000004480000-0x0000000004481000-memory.dmp

Filesize
4KB

Download
memory/2944-23-0x0000000004380000-0x0000000004381000-memory.dmp

Filesize
4KB

Download
memory/2944-27-0x00000000043B0000-0x00000000043B1000-memory.dmp

Filesize
4KB

Download
memory/2944-28-0x00000000043F0000-0x00000000043F1000-memory.dmp

Filesize
4KB

Download
memory/2944-29-0x0000000004440000-0x0000000004441000-memory.dmp

Filesize
4KB

Download
memory/3952-5-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/3952-7-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/3952-11-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/3952-8-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/3952-9-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/4508-25-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/4508-20-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/4508-22-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/4508-21-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download
memory/4508-18-0x0000000010000000-0x00000000101A5000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads