a7fa8b651bbb67a6b9f56ac920b4f2bcdeb505c8509d26d9e65b118b3eccb4dc

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/06/2024, 12:58

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General

Target
RedScreenRansomware.pyc
Size 7KB
Sample240612-p7y28swamd
SHA256 87d2d34e03fa3e601d50b990fe1d845f727b860c493588f5f27c00605dbab872
MD5 8c589d54c984b6c5e15a51318417bddc
SHA1 0564184709d5130a1ba6e3803dbd125acf500b46
SHA512 45cf618c94598ea49ec4f0d0d627985bdf2c7e03d9cdb3d2cbecffbd451c6a5011a2c61054f6d4eb4de62b1beb38ffe067150f0058b09dc04213b385e7148fa1
SSDEEP 96:62VnDzc+nLxGWxkV8tkUKHyvKxKp/5xi7m1/UOh:6unDZtZxsdUKHyyxKp/ziGUOh
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 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2812	AcroRd32.exe
2812	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 2604	856	cmd.exe	29
PID 856 wrote to memory of 2604	856	cmd.exe	29
PID 856 wrote to memory of 2604	856	cmd.exe	29
PID 2604 wrote to memory of 2812	2604	rundll32.exe	30
PID 2604 wrote to memory of 2812	2604	rundll32.exe	30
PID 2604 wrote to memory of 2812	2604	rundll32.exe	30
PID 2604 wrote to memory of 2812	2604	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\RedScreenRansomware.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\RedScreenRansomware.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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\RedScreenRansomware.pyc"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2812

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

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 0ee5f4be7d218e47b54241612e3e2898879dd64379f7716f5fbdd22504183117
MD5 731832124345dc334ff290821cdfdaf5
SHA1 0b6885f145f10549f49292d98440fb92ad7af21b
SHA512 57b6186e4652f859369aa7f54e00b4a07a2760d299414a3588f4cebfffb3894c69273d017ff0ee13f7517ad158f1864cf676239293e752d298d147fda91d98d4
MD5 SHA1 SHA512

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