bb227aa7b0404ccac254372c91ddf2e307526aa82ed9c4ecd3e495c38a6b4552

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15-07-2024 08:19

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General

Target

MedicareSign/rus.lng
Size

46KB
MD5

4f72ebbb21a28ef673687332542300b9
SHA1

97728fa855847e50d0bb1d139c4d1e10e79a3253
SHA256

ac761219f646ef9fbab4816c93a3754e9f6cb988872a1951e7f78acb799ba01e
SHA512

9f363dbc28a0d91ece3945631d89a2941f46959e8cf53c845394782854cd92ef922c27ec2cc3f0e82ee35271a0c4ea58d2fd62f098902e07271df00707278105
SSDEEP

768:bm9Qflsx38ZvCbPiyE1nvdm9tabMNfXGDdCCncTl4NRE6SjgQyPBhYgA/pCqFomU:69QflaIuib1AHabMNfXcdtncTl4NS6Ss

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-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.lng\ = "lng_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.lng	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lng_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2820	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2820	AcroRd32.exe
2820	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2468	2388	cmd.exe	31
PID 2388 wrote to memory of 2468	2388	cmd.exe	31
PID 2388 wrote to memory of 2468	2388	cmd.exe	31
PID 2468 wrote to memory of 2820	2468	rundll32.exe	32
PID 2468 wrote to memory of 2820	2468	rundll32.exe	32
PID 2468 wrote to memory of 2820	2468	rundll32.exe	32
PID 2468 wrote to memory of 2820	2468	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\MedicareSign\rus.lng
1⤵
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\MedicareSign\rus.lng
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2468
- - 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\MedicareSign\rus.lng"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2820

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
adb2c1623ddebfb772ef4b34d64c9e40

SHA1
2890e18447cee46feb8f277fdaced64cafc1e0c2

SHA256
5072c217b77bff7c84c6a68a43b2e1bd98a2bff72335d2c71041618cd9391e55

SHA512
65489744324b8630def1aff4c70817b99266fa599fa286f88b7cf2aceadb210996c8389c9eb8c124634602966f699b97a492f4aa6e0fd973320c75c53a02b77f

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