diamondfox | a5ce92e7e63bf447b0d2591484d012b8491221c6a27bf2ae87d9a5678f7d09e9

General

Target

7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
Size

18KB
MD5

8f77d92060389f5733905710714556ce
SHA1

f817bbd59241f5dd732259784c2fabff78d1dfde
SHA256

7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f
SHA512

313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a
SSDEEP

384:NJE1O9JBp+U2CYf00mrtWivKSmSggQmUWgVhkXHQ1:NFI0/XvdJUVhgH

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

Processes:

explorer.exe

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

Processes:

explorer.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" explorer.exe
Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

4680 explorer.exe

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

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

pid	process
4680	explorer.exe

Drops startup file 2 IoCs

Processes:

explorer.exe

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

Processes:

explorer.exe

description ioc process

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

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

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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

Processes:

explorer.exe

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

Processes:

7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exeexplorer.exe

pid process

3604 7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
4680 explorer.exe

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

pid	process
3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe
4680	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe

description	pid	process	target process
PID 3604 wrote to memory of 4680	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	explorer.exe
PID 3604 wrote to memory of 4680	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	explorer.exe
PID 3604 wrote to memory of 4680	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	explorer.exe
PID 3604 wrote to memory of 4532	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	cmd.exe
PID 3604 wrote to memory of 4532	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	cmd.exe
PID 3604 wrote to memory of 4532	3604	7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f.exe	cmd.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

explorer.exe

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:3604

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:4680

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\A719DFB7.cmd
2⤵
PID:4532

Network

MITRE ATT&CK Matrix ATT&CK 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

3

T1089

Modify Registry

5

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\A719DFB7.cmd
Filesize
170B

MD5
c1646375a5134f7a8de899466c386861

SHA1
82aa1e446057825ef52c2e79afba5ec764500bce

SHA256
39d876a60c4cef3cd459eff8af7abb814e18268a74f18f2ae8d4b145268c297e

SHA512
c426ac24bc77b2bf369435843d953a65072dfa3d7ce4d8d77df80bb1786a68f5f8d5b8f76303752ed6b69b41a987c45a7c5f97b094977efa00fc14cce029db2f

Download Submit
C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
Filesize
18KB

MD5
8f77d92060389f5733905710714556ce

SHA1
f817bbd59241f5dd732259784c2fabff78d1dfde

SHA256
7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f

SHA512
313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a

Download Submit
C:\Users\Admin\AppData\Roaming\lpt9.{2227A280-3AEA-1069-A2DE-08002B30309D}\explorer.exe
Filesize
18KB

MD5
8f77d92060389f5733905710714556ce

SHA1
f817bbd59241f5dd732259784c2fabff78d1dfde

SHA256
7a1833f7b91269b9f0eb48f9bba3db9cc444f749d82255322e1f8e221612895f

SHA512
313e5b16ac7d556a74d19b2610f5e811694c1a660a460604afe5272f416fb1f7f2d04cea173dc9f2ce392e42101225fa0850f03ceaf46616d52347c96097468a

Download Submit
memory/3604-134-0x0000000000400000-0x000000000041016C-memory.dmp

Filesize
64KB

Download
memory/3604-141-0x0000000000400000-0x000000000041016C-memory.dmp

Filesize
64KB

Download
memory/4532-140-0x0000000000000000-mapping.dmp

Download
memory/4680-135-0x0000000000000000-mapping.dmp

Download
memory/4680-143-0x0000000000400000-0x000000000041016C-memory.dmp

Filesize
64KB

Download
memory/4680-144-0x0000000000400000-0x000000000041016C-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads