109e28e1841956878110d3eec893a910c898eff0e7e1491518ee249a2dcf0d52

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 09:24

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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

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

AcroRd32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\dat_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2496	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2496	AcroRd32.exe
2496	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 2836 wrote to memory of 2084	2836	cmd.exe	31
PID 2836 wrote to memory of 2084	2836	cmd.exe	31
PID 2836 wrote to memory of 2084	2836	cmd.exe	31
PID 2084 wrote to memory of 2496	2084	rundll32.exe	32
PID 2084 wrote to memory of 2496	2084	rundll32.exe	32
PID 2084 wrote to memory of 2496	2084	rundll32.exe	32
PID 2084 wrote to memory of 2496	2084	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\updates\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2836
- 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:2084
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
2516cf89abf5631c9fed160138ddd41b

SHA1
8f0b74d2306fdddf55559549ad048ebc31387501

SHA256
0a87969e9ee17199ab439d346c1be10b691339f36785453f3db26dab808b95c1

SHA512
2ba91e235c78976e5409572ee818c0caced40cd72a472841a36eb1f8a212bce47fb7a7f18c61f5eb3d868773348ca26d3da81114ffcb529e4ff54312707e2761

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