purplefox | 428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 10:09

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General

Target

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
Size

11.4MB
MD5

6f6bb833a8191f08decacba9730e6d7d
SHA1

0597752575d4f9b9d71f5951506f6a0a6b4645e7
SHA256

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e
SHA512

7e143310c40100b1ce85504e755a8686d5a5345e03fae4f28e618102ac2e852edee0e004524204cdbb1d3f0a6b411a4c7c037cb7bb8f5111a68ac4ca945013b6
SSDEEP

196608:tpbyXKAoNI2BF/f6BVGTgxVG8VGb3bvGenj01x5DkQ9L/5fgnpjEDIbRp8g6bCzy:+XKAmNeBCbQ9LRsZ/8g6bCzoPAc+Qpce

Score

10^/10

purplefox discovery rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/files/0x000a000000023c0f-2.dat	purplefox_rootkit

PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Executes dropped EXE 2 IoCs

Processes:

Mfiqc.exeMfiqc.exe

pid	Process
4556	Mfiqc.exe
4608	Mfiqc.exe

Drops file in System32 directory 2 IoCs

Processes:

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Mfiqc.exe	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
File created	C:\Windows\SysWOW64\Mfiqc.exe	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exeMfiqc.exeMfiqc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mfiqc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mfiqc.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

Mfiqc.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Mfiqc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Mfiqc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Mfiqc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Mfiqc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Mfiqc.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exeMfiqc.exe

description	pid	Process
Token: SeSecurityPrivilege	508	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
Token: 33	4608	Mfiqc.exe
Token: SeIncBasePriorityPrivilege	4608	Mfiqc.exe
Token: 33	4608	Mfiqc.exe
Token: SeIncBasePriorityPrivilege	4608	Mfiqc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Mfiqc.exe

description	pid	Process	procid_target
PID 4556 wrote to memory of 4608	4556	Mfiqc.exe	87
PID 4556 wrote to memory of 4608	4556	Mfiqc.exe	87
PID 4556 wrote to memory of 4608	4556	Mfiqc.exe	87

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\SoftwareSASGeneration = "3"	428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe

C:\Users\Admin\AppData\Local\Temp\428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe
"C:\Users\Admin\AppData\Local\Temp\428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:508

C:\Windows\SysWOW64\Mfiqc.exe
C:\Windows\SysWOW64\Mfiqc.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\Mfiqc.exe
  C:\Windows\SysWOW64\Mfiqc.exe -acsi
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Mfiqc.exe

Filesize
11.4MB

MD5
6f6bb833a8191f08decacba9730e6d7d

SHA1
0597752575d4f9b9d71f5951506f6a0a6b4645e7

SHA256
428792c0a53e4218e0ad0c79b9e3040637977ae118b60aeb6ee1d9a45bb33a3e

SHA512
7e143310c40100b1ce85504e755a8686d5a5345e03fae4f28e618102ac2e852edee0e004524204cdbb1d3f0a6b411a4c7c037cb7bb8f5111a68ac4ca945013b6

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