diamondfox | 7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f

General

Target
7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
Size 18KB
Sample221026-2d36bahedp
SHA256 7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f
MD5 8f77d92060389f5733905710714556ce
SHA1 f817bbd59241f5dd732259784c2fabff78d1dfde
SHA512 313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a
SSDEEP 384:NJE1O9JBp+U2CYf00mrtWivKSmSggQmUWgVhkXHQ1:NFI0/XvdJUVhgH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

diamondfox botnet evasion persistence stealer trojan

Malware Config

Signatures

DiamondFox
DiamondFox is a multipurpose botnet with many capabilities.
botnet stealer diamondfox

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	explorer.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	explorer.exe

Executes dropped EXE 1 IoCs

pid	Process
3444	explorer.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\explorer.exe	explorer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\explorer.exe	explorer.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Roaming\\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\\explorer.exe"	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	explorer.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
3444	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 3444	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	85
PID 2152 wrote to memory of 3444	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	85
PID 2152 wrote to memory of 3444	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	85
PID 2152 wrote to memory of 1476	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	86
PID 2152 wrote to memory of 1476	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	86
PID 2152 wrote to memory of 1476	2152	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	86

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	explorer.exe

C:\Users\Admin\AppData\Local\Temp\7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
"C:\Users\Admin\AppData\Local\Temp\7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
  C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
  2⤵
  - UAC bypass
  - Windows security bypass
  - Executes dropped EXE
  - Drops startup file
  - Windows security modification
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:3444
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\F85A6F0F.cmd
  2⤵
  PID:1476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

F85A6F0F.cmd

Path C:\Users\Admin\AppData\Local\Temp\F85A6F0F.cmd
Size 170B
SHA256 7f5769551cbf84869763cc0be273a69a6a68b1eccf87a6b1d3cdee8cf329739c
MD5 1a31794a138f978e14ed2de5a859f275
SHA1 53eaf941b22000b8b750eab91be2d6ffd844dadf
SHA512 3e3d20cffee71268b9f5fac283b680707ee6bf1e8c683ef40886ffd03c9ebfb9eb75784d406b84a19f773c51ff2592d3ba61b0f0a40cdb3409a14340a4ea7c0a
MD5 SHA1 SHA512

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explorer.exe

Path C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
Size 18KB
SHA256 7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f
MD5 8f77d92060389f5733905710714556ce
SHA1 f817bbd59241f5dd732259784c2fabff78d1dfde
SHA512 313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a
SSDEEP 384:NJE1O9JBp+U2CYf00mrtWivKSmSggQmUWgVhkXHQ1:NFI0/XvdJUVhgH
MD5 SHA1 SHA512 SSDEEP

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explorer.exe

Path C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
Size 18KB
SHA256 7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f
MD5 8f77d92060389f5733905710714556ce
SHA1 f817bbd59241f5dd732259784c2fabff78d1dfde
SHA512 313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a
SSDEEP 384:NJE1O9JBp+U2CYf00mrtWivKSmSggQmUWgVhkXHQ1:NFI0/XvdJUVhgH
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2152-134-0x0000000000400000-0x000000000041016C-memory.dmp

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memory/2152-141-0x0000000000400000-0x000000000041016C-memory.dmp

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memory/3444-142-0x0000000000400000-0x000000000041016C-memory.dmp

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memory/3444-144-0x0000000000400000-0x000000000041016C-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads