2f0b8c5ea4e7923690e4c4424621c2f00cc40d3c62790a2389addc5ea8ba14a8

Analysis

max time kernel
1800s
max time network
1610s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
01-04-2023 15:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

README.md
Size

33KB
MD5

56d516a0b8b08c2c3ffc831cc1333150
SHA1

b0ddb188ec55d3ef4e95bcfa017d813581b5853c
SHA256

ee2c5bd769e09ea9550ac5a99067a4150de3b88741dda74a96cdf4951c337581
SHA512

001c3cac3094edfdb208b04f7320446da3cca3ba742e6a9873d1b2ee7a67144db033b5e71ef4a64dde44f5077bc8d3263e5ad57824290c0a2f23b38704097494
SSDEEP

384:IbZA6aciT2ygr91ckRrMm6993sp28SduGYIP5/oDMaGbIlj8gSSIFfPLGOhzhrt4:8bqnD8pIPVuG4QgohVhzhrSBIq43sL

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 registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.md	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.md\ = "md_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\md_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1828 AcroRd32.exe
1828 AcroRd32.exe
1828 AcroRd32.exe

pid	process
1828	AcroRd32.exe
1828	AcroRd32.exe
1828	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1996 wrote to memory of 468	1996	cmd.exe	rundll32.exe
PID 1996 wrote to memory of 468	1996	cmd.exe	rundll32.exe
PID 1996 wrote to memory of 468	1996	cmd.exe	rundll32.exe
PID 468 wrote to memory of 1828	468	rundll32.exe	AcroRd32.exe
PID 468 wrote to memory of 1828	468	rundll32.exe	AcroRd32.exe
PID 468 wrote to memory of 1828	468	rundll32.exe	AcroRd32.exe
PID 468 wrote to memory of 1828	468	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\README.md
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:468

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\README.md"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1828

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads