diamondfox | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248

General

Target

3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe
Size

312KB
MD5

17a1f7e98731df9b74b98accb650d50e
SHA1

64a96c0cfd3884f682b1b56f3e9e1b880849694f
SHA256

3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248
SHA512

49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917

Score

10^/10

diamondfox botnet infostealer stealer upx

Malware Config

Signatures

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

DiamondFox payload 4 IoCs

Detects DiamondFox payload in file/memory.

infostealer

resource	yara_rule
behavioral1/memory/108-63-0x0000000000400000-0x000000000049C000-memory.dmp	diamondfox
behavioral1/memory/108-68-0x0000000000400000-0x000000000049C000-memory.dmp	diamondfox
behavioral1/memory/920-75-0x0000000000400000-0x000000000049C000-memory.dmp	diamondfox
behavioral1/memory/920-76-0x0000000000400000-0x000000000049C000-memory.dmp	diamondfox

Executes dropped EXE 1 IoCs

pid	Process
920	lsass.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/108-55-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/108-56-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/108-59-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/108-63-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/files/0x00080000000144ad-64.dat	upx
behavioral1/files/0x00080000000144ad-66.dat	upx
behavioral1/memory/108-68-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/920-69-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/920-70-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/920-74-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/920-75-0x0000000000400000-0x000000000049C000-memory.dmp	upx
behavioral1/memory/920-76-0x0000000000400000-0x000000000049C000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.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
108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe
920	lsass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 2024	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	27
PID 108 wrote to memory of 2024	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	27
PID 108 wrote to memory of 2024	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	27
PID 108 wrote to memory of 2024	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	27
PID 108 wrote to memory of 920	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	28
PID 108 wrote to memory of 920	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	28
PID 108 wrote to memory of 920	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	28
PID 108 wrote to memory of 920	108	3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe	28

C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe
"C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2024
- C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
  "C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe" 0
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe

Filesize
312KB

MD5
17a1f7e98731df9b74b98accb650d50e

SHA1
64a96c0cfd3884f682b1b56f3e9e1b880849694f

SHA256
3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248

SHA512
49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917

Download Submit
\Users\Admin\AppData\Roaming\lsassfold\lsass.exe

Filesize
312KB

MD5
17a1f7e98731df9b74b98accb650d50e

SHA1
64a96c0cfd3884f682b1b56f3e9e1b880849694f

SHA256
3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248

SHA512
49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917

Download Submit
memory/108-55-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/108-56-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/108-68-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/108-58-0x00000000002B0000-0x00000000002C5000-memory.dmp

Filesize
84KB

Download
memory/108-59-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/108-63-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/108-54-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/920-69-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/920-70-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/920-74-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/920-75-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/920-76-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download

Resubmissions

Analysis

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