fe60b9bf14242f198dad76b2fe62f9818c44958a882b05ff3c814e5be3b059ae

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 10:40

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General

Target

User (Primary; 8705f821-91c4-44c8-bc63-3128ab519c2a)/local-storage-usage.json
Size

2KB
MD5

078fedfd2b5b795eedab2c463fde10ba
SHA1

9dc891824605550aea0bfd902f908a39ab6c4d5c
SHA256

387ba17b0a74376b49a05c9ea51156feb92c7bd13d31a2293a57a003f08967bd
SHA512

f911c575d6a07987a45922a18f60986e34b2bcf47ea1a6836885c49b30f69095235aae7753df76ad9e1b80442c70831b71e67d5cedb79649d394d4ece8ab87a2

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3068	AcroRd32.exe
3068	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2632	2012	cmd.exe	29
PID 2012 wrote to memory of 2632	2012	cmd.exe	29
PID 2012 wrote to memory of 2632	2012	cmd.exe	29
PID 2632 wrote to memory of 3068	2632	rundll32.exe	30
PID 2632 wrote to memory of 3068	2632	rundll32.exe	30
PID 2632 wrote to memory of 3068	2632	rundll32.exe	30
PID 2632 wrote to memory of 3068	2632	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\User (Primary; 8705f821-91c4-44c8-bc63-3128ab519c2a)\local-storage-usage.json"
1⤵
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\User (Primary; 8705f821-91c4-44c8-bc63-3128ab519c2a)\local-storage-usage.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2632
- - 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\User (Primary; 8705f821-91c4-44c8-bc63-3128ab519c2a)\local-storage-usage.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3068

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
8d260762cf2b31f83f492399cedae741

SHA1
f73632e718bf1a86d151ff96771355f0ba1392d3

SHA256
a01d2dd9ac67889238e236789544b49d05a88ef9e8701422d9b306843483500a

SHA512
7a6689e031736c1c373f6937ce13372b1ccb0f1d0d24ec226cb7c443ba2c760dbb43ba088b6564ddf61b852e600219cf99ab333405efebe117603900c50ff33f

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