purplefox | e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c

Reason

Machine shutdown

General

Target

e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
Size

4.3MB
MD5

4ddbd9c5e57cfb8bc96041f60871cec3
SHA1

e9788eb3ee5f76a1cdc817238ae9d87377a3de6b
SHA256

e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c
SHA512

c8c298dab210d71c73fc6e00c87c84412eabeedebff9de90681923bbb2554bee6c731903a8aad4f7f245ccfe9186f9507d2a0ff884181c5c28f27f52819c6b70
SSDEEP

49152:HH8NwEEq5elS/1rmo6mxQXiDGTMD1TRLjXpWMiI/57aa1u+ENFAoWo2DqbfP:YjelSl7BxQXGB3XpWHIh1U+EKo2DqbP

Score

10^/10

purplefox discovery persistence rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/5792-63-0x0000000010000000-0x00000000101B0000-memory.dmp	purplefox_rootkit
behavioral1/memory/5552-72-0x0000000010000000-0x00000000101B0000-memory.dmp	purplefox_rootkit
behavioral1/memory/5792-80-0x0000000000400000-0x0000000000591000-memory.dmp	purplefox_rootkit
behavioral1/memory/5552-82-0x0000000000400000-0x0000000000591000-memory.dmp	purplefox_rootkit
behavioral1/memory/5620-101-0x0000000000400000-0x0000000000591000-memory.dmp	purplefox_rootkit
behavioral1/memory/4156-157-0x0000000000400000-0x0000000000591000-memory.dmp	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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	conhost.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"	conhost.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe.lnk	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe

Executes dropped EXE 4 IoCs

pid	Process
5792	conhost.exe
5552	conhost.exe
5620	conhost.exe
4156	conhost.exe

Loads dropped DLL 1 IoCs

pid	Process
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe

UPX packed file 32 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2172-4-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-5-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-15-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-13-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-50-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-49-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-46-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-42-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-35-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-31-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-29-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-27-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-25-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-21-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-19-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-44-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-7-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-40-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-37-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-34-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-23-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-17-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-11-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-9-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/2172-6-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/files/0x0009000000024246-60.dat	upx
behavioral1/memory/5792-62-0x0000000000400000-0x0000000000591000-memory.dmp	upx
behavioral1/memory/5792-80-0x0000000000400000-0x0000000000591000-memory.dmp	upx
behavioral1/memory/5552-82-0x0000000000400000-0x0000000000591000-memory.dmp	upx
behavioral1/memory/2172-99-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/5620-101-0x0000000000400000-0x0000000000591000-memory.dmp	upx
behavioral1/memory/4156-157-0x0000000000400000-0x0000000000591000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\conhost.exe	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
File opened for modification	C:\Windows\conhost.exe	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
File opened for modification	C:\Windows\conhost.exe	conhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	conhost.exe
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	conhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	conhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	conhost.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
4900	cmd.exe
940	PING.EXE

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "124"	LogonUI.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
940	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
5620	conhost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	5792	conhost.exe
Token: SeLoadDriverPrivilege	5620	conhost.exe
Token: 33	5620	conhost.exe
Token: SeIncBasePriorityPrivilege	5620	conhost.exe
Token: SeShutdownPrivilege	2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
5812	LogonUI.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 5792	2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe	86
PID 2172 wrote to memory of 5792	2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe	86
PID 2172 wrote to memory of 5792	2172	e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe	86
PID 5792 wrote to memory of 4900	5792	conhost.exe	90
PID 5792 wrote to memory of 4900	5792	conhost.exe	90
PID 5792 wrote to memory of 4900	5792	conhost.exe	90
PID 5552 wrote to memory of 5620	5552	conhost.exe	91
PID 5552 wrote to memory of 5620	5552	conhost.exe	91
PID 5552 wrote to memory of 5620	5552	conhost.exe	91
PID 4900 wrote to memory of 940	4900	cmd.exe	95
PID 4900 wrote to memory of 940	4900	cmd.exe	95
PID 4900 wrote to memory of 940	4900	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe
"C:\Users\Admin\AppData\Local\Temp\e7801786e09570024cd630d48577507df421891b2bde156916893fa5a738b37c.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\conhost.exe
  C:\Windows\conhost.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5792
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Windows\conhost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4900
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:940

C:\Windows\conhost.exe
C:\Windows\conhost.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5552
- C:\Windows\conhost.exe
  C:\Windows\conhost.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:5620

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa392d055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5812

C:\Windows\conhost.exe
C:\Windows\conhost.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4156

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 Information Discovery

1

T1082

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:\Users\Admin\AppData\Local\Temp\dzHPSocket4C.dll

Filesize
2.8MB

MD5
9134ef6a44e4a9cb311e1139e4590812

SHA1
7ae8250a4afd225dbc8420183116e8af1cf15cfe

SHA256
30000de63dd389b0aef61d01cdae2ed38f4bc0e03ca04e585780ca7b55b47662

SHA512
77fa1b7ff4dd4d96041b5b0f6df62b4cea39820163d12921af5fff5a959f26078441e6fd5652f7d4b72565a5fe4e217e869efd724d910d531d24637c5cb74ed8

Download Submit
C:\Windows\conhost.exe

Filesize
652KB

MD5
4f883e7d4d89a581845bc451d7f7a90c

SHA1
15dd39b9401b946330288a147437af3d9722bdf1

SHA256
7c36b489a2fe329398415fd58a73c3b61f8127d4a4ebb002a64d604cfe2d7387

SHA512
56e54e4e03f783fddad2b61ace38f7adfec5bcc0f591aeb9004c82eb674daaafc584037f057123789bafbfedc914d01a7d92af685b2239b232668a3ef2e1f61f

Download Submit
memory/2172-7-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-34-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-50-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-49-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-46-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-42-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-35-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-31-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-29-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-27-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-25-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-21-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-19-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-44-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-4-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-40-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-13-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-23-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-37-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-17-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-11-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-9-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-6-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-15-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-5-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/2172-99-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4156-157-0x0000000000400000-0x0000000000591000-memory.dmp

Filesize
1.6MB

Download
memory/5552-72-0x0000000010000000-0x00000000101B0000-memory.dmp

Filesize
1.7MB

Download
memory/5552-82-0x0000000000400000-0x0000000000591000-memory.dmp

Filesize
1.6MB

Download
memory/5620-101-0x0000000000400000-0x0000000000591000-memory.dmp

Filesize
1.6MB

Download
memory/5792-63-0x0000000010000000-0x00000000101B0000-memory.dmp

Filesize
1.7MB

Download
memory/5792-80-0x0000000000400000-0x0000000000591000-memory.dmp

Filesize
1.6MB

Download
memory/5792-62-0x0000000000400000-0x0000000000591000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads