2f718b6527df6babca62b1c7e0126bf18ad92927ecf9baf433c5f6808befd063

Analysis

max time kernel
45s
max time network
16s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-06-2024 22:12

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General

Target

updates/icudtl.dat
Size

9.8MB
MD5

65c6337820fbe9bf2498a9395e3b20f2
SHA1

5cc62646e6c73b4be276d08719bc5e257af972bb
SHA256

33da1cdda18eaea52011d40ae9a610cac9f6466156e9803891ee77294607aee4
SHA512

4800f03577a46a98a4bd786dc37a380f4169540e243fdb7835e3146fba0d0e1d07a7e3ec8cd23566feb00d204d582d678698ae61db156339fe56229de0b267c9
SSDEEP

196608:g7UPty2ACLA2cliXUxR0jHz93Whl96p6VJQ:V12CLAZliXUxR0jHz93Whl96p6VJQ

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-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 2584	1492	cmd.exe	29
PID 1492 wrote to memory of 2584	1492	cmd.exe	29
PID 1492 wrote to memory of 2584	1492	cmd.exe	29
PID 2584 wrote to memory of 2612	2584	rundll32.exe	30
PID 2584 wrote to memory of 2612	2584	rundll32.exe	30
PID 2584 wrote to memory of 2612	2584	rundll32.exe	30
PID 2584 wrote to memory of 2612	2584	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\updates\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\updates\icudtl.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2584
- - 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\updates\icudtl.dat"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2612

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
c4482e27fb603fe5c692bb466bf37690

SHA1
96f6f7f24303563ae8bf5af73098bb12310b65ab

SHA256
7bff2b5b61268600a645c6ec7e27f2cae1e0c15804826ec44b404bf6b4e933e1

SHA512
aada823a7704cb13de2520155812fc4f45dc2cd40f30ef92e04f3706e461111043c510b7d9fd3ed5000bb168e6b6e808151153d1b59f9466d50c3af1ad1cf942

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