d3e26c7296830666e8d5758afc850c5b596ceb3e2c1ebbb01d5dc22ff58ff5fa

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 18:47

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General

Target
DreamMail4/Language/Resource.pl
Size 232KB
Sample240228-xfbfvsbc98
SHA256 8a12eea4f0766e04f179bb67af229aa86084a3e1d749b1fced6b7b8f2568df3a
MD5 3c0b1a417f96de17d3327fd5e94e7915
SHA1 8739e7fa822777c5c74fb0a3ec6842bb1b4e7124
SHA512 700e1302bc92be482ef8177425253a5ef5cb23d7843261db30d9d77ddddf0f39bdbe6efc8eb781e7679d8b0b8ea24074303da50df63c9f3ab635a458ad1052ba
SSDEEP 6144:nE8soa1eStqTkzxH+WyL2sgftOvLxIl8pXRf:n0HbVwx7pXB
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pl	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\edit\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pl\ = "pl_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pl_auto_file\shell\open	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2572	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2648	2292	cmd.exe	29
PID 2292 wrote to memory of 2648	2292	cmd.exe	29
PID 2292 wrote to memory of 2648	2292	cmd.exe	29
PID 2648 wrote to memory of 2572	2648	rundll32.exe	30
PID 2648 wrote to memory of 2572	2648	rundll32.exe	30
PID 2648 wrote to memory of 2572	2648	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\DreamMail4\Language\Resource.pl
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\DreamMail4\Language\Resource.pl
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\DreamMail4\Language\Resource.pl
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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