diamondfox | 8ca67e40d0d3826efc58feb163760f994eae52731f74c2a3d0d45148a2996bb2

General

Target

1607460946_Loade.exe
Size

140KB
MD5

7bf6de1dc69718455fb90e9a30a9183d
SHA1

3a7f90978908d56d2b689aede98572581442cb19
SHA256

8ca67e40d0d3826efc58feb163760f994eae52731f74c2a3d0d45148a2996bb2
SHA512

78d208eb831789a85d3a5920560fa7c7fe1385491830dbc1e6caac35bb7cba66692cdc1d6b9c06f12a80767e1fa78cb56f011ab9e982839976757fd6cc08ccd9

Score

10^/10

diamondfox botnet ransomware stealer

Malware Config

Signatures

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

DiamondFox payload 2 IoCs

Detects DiamondFox payload in file/memory.

resource	yara_rule
behavioral1/memory/544-5-0x0000000000020000-0x0000000000038000-memory.dmp	diamondfox
behavioral1/memory/544-6-0x0000000000400000-0x000000000041A000-memory.dmp	diamondfox

Executes dropped EXE 1 IoCs

pid	Process
868	atiedxx.exe

Drops startup file 1 IoCs

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

Loads dropped DLL 3 IoCs

pid	Process
316	powershell.exe
316	powershell.exe
1592	powershell.exe

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

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	atiedxx.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	atiedxx.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
316	powershell.exe
316	powershell.exe
1592	powershell.exe
1592	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	powershell.exe
Token: SeDebugPrivilege	1592	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
544	1607460946_Loade.exe
868	atiedxx.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 316	544	1607460946_Loade.exe	29
PID 544 wrote to memory of 316	544	1607460946_Loade.exe	29
PID 544 wrote to memory of 316	544	1607460946_Loade.exe	29
PID 544 wrote to memory of 316	544	1607460946_Loade.exe	29
PID 316 wrote to memory of 868	316	powershell.exe	31
PID 316 wrote to memory of 868	316	powershell.exe	31
PID 316 wrote to memory of 868	316	powershell.exe	31
PID 316 wrote to memory of 868	316	powershell.exe	31
PID 868 wrote to memory of 1592	868	atiedxx.exe	32
PID 868 wrote to memory of 1592	868	atiedxx.exe	32
PID 868 wrote to memory of 1592	868	atiedxx.exe	32
PID 868 wrote to memory of 1592	868	atiedxx.exe	32

C:\Users\Admin\AppData\Local\Temp\1607460946_Loade.exe
"C:\Users\Admin\AppData\Local\Temp\1607460946_Loade.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:544
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\1607460946_Loade.exe' -Destination 'C:\Users\Admin\AppData\Local\xdaeitx\atiedxx.exe';Start-Sleep -s 60;Start-Process 'C:\Users\Admin\AppData\Local\xdaeitx\atiedxx.exe'
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Users\Admin\AppData\Local\xdaeitx\atiedxx.exe
    "C:\Users\Admin\AppData\Local\xdaeitx\atiedxx.exe"
    3⤵
    - Executes dropped EXE
    - Modifies system certificate store
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:868
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell $shell = New-Object -ComObject WScript.Shell;$shortcut = $shell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\atiedxx.lnk');$shortcut.TargetPath = 'C:\Users\Admin\AppData\Local\xdaeitx\atiedxx.exe';$shortcut.Save()
      4⤵
      Drops startup file
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/316-15-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/316-8-0x0000000076881000-0x0000000076883000-memory.dmp

Filesize
8KB

Download
memory/316-33-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/316-31-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/316-24-0x0000000006170000-0x0000000006171000-memory.dmp

Filesize
4KB

Download
memory/316-13-0x0000000002740000-0x0000000002741000-memory.dmp

Filesize
4KB

Download
memory/316-23-0x0000000006110000-0x0000000006111000-memory.dmp

Filesize
4KB

Download
memory/316-14-0x0000000002742000-0x0000000002743000-memory.dmp

Filesize
4KB

Download
memory/316-32-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/316-18-0x0000000006090000-0x0000000006091000-memory.dmp

Filesize
4KB

Download
memory/316-11-0x00000000048C0000-0x00000000048C1000-memory.dmp

Filesize
4KB

Download
memory/316-10-0x0000000001EB0000-0x0000000001EB1000-memory.dmp

Filesize
4KB

Download
memory/316-12-0x0000000002580000-0x0000000002581000-memory.dmp

Filesize
4KB

Download
memory/316-9-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/544-6-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/544-5-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/544-2-0x0000000000640000-0x0000000000651000-memory.dmp

Filesize
68KB

Download
memory/868-38-0x0000000000610000-0x0000000000621000-memory.dmp

Filesize
68KB

Download
memory/1592-52-0x0000000002632000-0x0000000002633000-memory.dmp

Filesize
4KB

Download
memory/1592-51-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/1592-50-0x0000000005340000-0x0000000005341000-memory.dmp

Filesize
4KB

Download
memory/1592-49-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/1592-48-0x0000000004820000-0x0000000004821000-memory.dmp

Filesize
4KB

Download
memory/1592-62-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/1592-47-0x0000000001E60000-0x0000000001E61000-memory.dmp

Filesize
4KB

Download
memory/1592-46-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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