d1d5f8c21e7111ca5a3a03d0fc6fed418af963d49b24980e1730057a5e5e8745

Analysis

max time kernel
1566s
max time network
1566s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 02:17

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General

Target
kiracro-toggle.pyc
Size 4KB
Sample240329-cqt1qsff23
SHA256 dabb5f6442383b2330a8f2ff49d7daab5a585aee2f322ec80e440d36542c2968
MD5 6863f2d5e67b8fb9ce28887af59502a3
SHA1 074412b918b27cce0afce518e48085edf565b410
SHA512 cb9d5ec1b08f530f16d7af0c49c0029b5b91d941037ff15fbdf2eb72739425540cfe96a3fb9735a7d819bfbe06c784187be38f8a9841bf0206bbe05b8bf4c3b6
SSDEEP 96:s3np/CJjV15CCnDJ20s2xD7NGPoT+mMINRln:s3UV1sC920F7Uf+l
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
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2428	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2428	AcroRd32.exe
2428	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2508	2808	cmd.exe	29
PID 2808 wrote to memory of 2508	2808	cmd.exe	29
PID 2808 wrote to memory of 2508	2808	cmd.exe	29
PID 2508 wrote to memory of 2428	2508	rundll32.exe	30
PID 2508 wrote to memory of 2428	2508	rundll32.exe	30
PID 2508 wrote to memory of 2428	2508	rundll32.exe	30
PID 2508 wrote to memory of 2428	2508	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\kiracro-toggle.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\kiracro-toggle.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2508
- - 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\kiracro-toggle.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2428

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 656746c4c7fdca8f32384a4f60221e948b96d03baf8d3a4e5c51070ec2428f0b
MD5 83e720c564bfdda084fba31706bdf69f
SHA1 355b59ea120d14c20dae713535b47111398a54e3
SHA512 645fe80bfe3528452ab37881a7e26a7e9b66fee5c97d3a6dde7810a5dbab41e16f0503664223e75bc3c23f659e5dab83e1ab60884acd1f6adf4ef903c437bdab
MD5 SHA1 SHA512

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