ba18ff142bae31457031ca49e772b10792ad3a5bdead90cb2c1d37e2a6c2fd59

Resubmissions

12-06-2024 08:39

240612-kkjltawejn 10

13-04-2024 00:14

240413-ajfhnagf98 10

Analysis

max time kernel
105s
max time network
81s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-04-2024 00:14

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General

Target

Malware-Feed-master/2020.08.26_CISA-MAR-10301706_North_Korean_RAT_VIVACIOUSGIFT/README.md
Size

57B
MD5

79f3d3ec95c1681b30a289d47fe9bf82
SHA1

5e056ef6753dce87b18f63887c3a93edc982b8cd
SHA256

cf902e98385501c66693e066020c9cd5e8f0fcde375e2821d1b2658ecec7dfc1
SHA512

38a8ccc55d8c7badafd36899b6302724039ee3a17f387ebe0aa29a86ac30215d60e0af8fbb88965e68551853b5a41a454166f95df066ea53b5ed2b8bd83cf2cc

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-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\md_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\md_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\md_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\md_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.md	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.md\ = "md_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\md_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_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
2424	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2424	AcroRd32.exe
2424	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2964	2872	cmd.exe	31
PID 2872 wrote to memory of 2964	2872	cmd.exe	31
PID 2872 wrote to memory of 2964	2872	cmd.exe	31
PID 2964 wrote to memory of 2424	2964	rundll32.exe	32
PID 2964 wrote to memory of 2424	2964	rundll32.exe	32
PID 2964 wrote to memory of 2424	2964	rundll32.exe	32
PID 2964 wrote to memory of 2424	2964	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Malware-Feed-master\2020.08.26_CISA-MAR-10301706_North_Korean_RAT_VIVACIOUSGIFT\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- 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-MAR-10301706_North_Korean_RAT_VIVACIOUSGIFT\README.md
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2964
- - 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-MAR-10301706_North_Korean_RAT_VIVACIOUSGIFT\README.md"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2424

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
128f942aacd93d0a2e77102ea311fb67

SHA1
a3eba303e0e9c52ce1e6277074c841679c2db5bd

SHA256
98fc49760eee4a8e5ea906b713ea5c69b524d1426964edda7230330c38ddb32f

SHA512
d446845f7b56665d36518ec26714625867b454d98bc7cc98a05105b34f8671ac8887bbd68c8b5f3e3d8cb0b8a977833702fdf4bdef488c576b431d70462649e0

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