ba18ff142bae31457031ca49e772b10792ad3a5bdead90cb2c1d37e2a6c2fd59

Analysis

max time kernel
129s
max time network
78s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
13-04-2024 01:05

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General

Target

Malware-Feed-master/2020.08.26_CISA-North_Korean_RAT_FASTCASH/README.md
Size

57B
MD5

458d11e645eeffee92af828d0414b416
SHA1

a14b228cc590da99273e94b726be87656023e1a4
SHA256

c84b6395bd4039e696a5f809e26812630a4b3a69e34e17d7dba6d32bbdf2f95d
SHA512

2a1fa4833893f2c340f7f9f07569c8258af699254e44de4e57572a649cfc0d3cd7bae5f5af447b24690f19b6c4a53ffc0fb53b8cd736cbf036dd37bf7c28da11

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
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.md	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.md\ = "md_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2988	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2988	AcroRd32.exe
2988	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2628	2544	cmd.exe	30
PID 2544 wrote to memory of 2628	2544	cmd.exe	30
PID 2544 wrote to memory of 2628	2544	cmd.exe	30
PID 2628 wrote to memory of 2988	2628	rundll32.exe	31
PID 2628 wrote to memory of 2988	2628	rundll32.exe	31
PID 2628 wrote to memory of 2988	2628	rundll32.exe	31
PID 2628 wrote to memory of 2988	2628	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Malware-Feed-master\2020.08.26_CISA-North_Korean_RAT_FASTCASH\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Malware-Feed-master\2020.08.26_CISA-North_Korean_RAT_FASTCASH\README.md
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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\Malware-Feed-master\2020.08.26_CISA-North_Korean_RAT_FASTCASH\README.md"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2988

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
00db76be05ee1b3e37ba1348b7c65230

SHA1
7bea8758fbb536c51939d94ab54193a9661593e6

SHA256
bbd2f6de596baaf03c2c5e3187287a66871aa744da7c46704ad8eb120d4a78c1

SHA512
178c7bd602a4e27b6769aded5f029749c829f9bbda0a77c3fe868251a6a635bc01a4f96b171fb7baaa2e8557158501b9211bdee53dcbd0e667dd4da7924c78dd

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