d2379b6baab95a3cf0be78b228374082ca9ee5b76510c7b333c95af38db24e7e

Analysis

max time kernel
153s
max time network
79s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 08:14

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General

Target

sharedassets218.resource
Size

77KB
MD5

63780015f91359ed33c641afc762a2b5
SHA1

fe89ade31a3c825a4d5c8239c6390b63f88dddbe
SHA256

365497609c74c4f71afa832fedc2f01d185119ff29b015c619cf6cf94c856804
SHA512

e3a92c8f82fd0dd0b98d52553d7c96859c4b6f5b8bfd4d7fa858698859adf8ca4263ecc74efc7bb95639fe44a1b7ad50621195e61143ccfe41fd45a282df8419
SSDEEP

1536:NutxXbF8EsvEJGRG5s0mS4xHUcJsC37HOj5ezZj0k6r7FCP1GQlhs:Nu8vEiG5sFZxsCrUSZj56fS2

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-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_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-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\.resource	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\.resource\ = "resource_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2492	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2492	AcroRd32.exe
2492	AcroRd32.exe
2492	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2512	2692	cmd.exe	31
PID 2692 wrote to memory of 2512	2692	cmd.exe	31
PID 2692 wrote to memory of 2512	2692	cmd.exe	31
PID 2512 wrote to memory of 2492	2512	rundll32.exe	32
PID 2512 wrote to memory of 2492	2512	rundll32.exe	32
PID 2512 wrote to memory of 2492	2512	rundll32.exe	32
PID 2512 wrote to memory of 2492	2512	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\sharedassets218.resource
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\sharedassets218.resource
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2512
- - 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\sharedassets218.resource"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2492

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

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Downloads

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

Filesize
3KB

MD5
7c9afabe2d3e52be4432380824215fcc

SHA1
b7ed5a909da97b13f085230780bf453fa0f465aa

SHA256
81ad0cb5c22d95686f30c23396d65517a9b56e9038dedb0779363363b2662001

SHA512
8357b56511ede5c936f82c4ae1a75ed16cd18d9fbf3f62d14e637febf052331142ee426efc3e279d4e982108db588596d9eacef1f16355ec4ff44f422f5e8630

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