c01657ae6e2f1fd94f247fbfc7dee9c701db142db2a3813c93ede6c633dd8029

General

Target

Sample_5a2ea1b1c301d804e6dd924f.bin.exe
Size

81KB
MD5

645d25f0d9f89b7b8a48b078e84501b7
SHA1

7ffd6f6416e103591ff6ead7532843afd698e103
SHA256

c01657ae6e2f1fd94f247fbfc7dee9c701db142db2a3813c93ede6c633dd8029
SHA512

5334a34422ce4bb42332337d33e3193c2313907df2e265607fe25d9b7a0fc78dc252173494cb17347bbe499993bda7ff872912ba88ef693a13e5aaae7e1943ac

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 23 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{505F7D81-4968-11EC-ADBE-4ECD28260268} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
764	NOTEPAD.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	1708	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1708	AUDIODG.EXE
Token: 33	1708	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1708	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
328	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
328	iexplore.exe
328	iexplore.exe
588	IEXPLORE.EXE
588	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 764	1480	rundll32.exe	34
PID 1480 wrote to memory of 764	1480	rundll32.exe	34
PID 1480 wrote to memory of 764	1480	rundll32.exe	34
PID 1588 wrote to memory of 328	1588	Sample_5a2ea1b1c301d804e6dd924f.bin.exe	36
PID 1588 wrote to memory of 328	1588	Sample_5a2ea1b1c301d804e6dd924f.bin.exe	36
PID 1588 wrote to memory of 328	1588	Sample_5a2ea1b1c301d804e6dd924f.bin.exe	36
PID 1588 wrote to memory of 328	1588	Sample_5a2ea1b1c301d804e6dd924f.bin.exe	36
PID 328 wrote to memory of 588	328	iexplore.exe	37
PID 328 wrote to memory of 588	328	iexplore.exe	37
PID 328 wrote to memory of 588	328	iexplore.exe	37
PID 328 wrote to memory of 588	328	iexplore.exe	37

C:\Users\Admin\AppData\Local\Temp\Sample_5a2ea1b1c301d804e6dd924f.bin.exe
"C:\Users\Admin\AppData\Local\Temp\Sample_5a2ea1b1c301d804e6dd924f.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" https://www.bitcoin.com/
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:328
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:328 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:588

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:996

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x598
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1708

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\StopCompress.lock
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\StopCompress.lock
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/996-60-0x000007FEFC371000-0x000007FEFC373000-memory.dmp

Filesize
8KB

Download
memory/1588-55-0x0000000000E80000-0x0000000000E81000-memory.dmp

Filesize
4KB

Download
memory/1588-57-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/1588-58-0x0000000000B80000-0x0000000000B81000-memory.dmp

Filesize
4KB

Download
memory/1588-59-0x0000000000B85000-0x0000000000B96000-memory.dmp

Filesize
68KB

Download

Analysis

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