61449feab7bb5877fe19d52c28720d83e3fbfa4a9ee64a380b649a9b1cea8a86

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 15:23

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General

Target

locales/cs.pak
Size

539KB
MD5

70f320d38d249b48091786bd81343afc
SHA1

367decdcdad33369250af741b45bdc2ca3b41ab3
SHA256

1c9448ea3aefce1a7e1491e73af91af772d8b22d538676a2beab690558e668fa
SHA512

02b08ed9261fd021e367995551defaf4b4f54c357409a362f4d2470423644913375cac444f62153ec2963a84880a30a36f827dbfacdd76a6222838c276cf5082
SSDEEP

6144:Lg4k2oNIYl8pvlntLO2A8YfZA2WBe5rK8VuvNO4w3SBZmPyO8QP:Lposty2A82IBe5rK8VuvNO93SrmPP

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2640	2212	cmd.exe	29
PID 2212 wrote to memory of 2640	2212	cmd.exe	29
PID 2212 wrote to memory of 2640	2212	cmd.exe	29
PID 2640 wrote to memory of 2684	2640	rundll32.exe	30
PID 2640 wrote to memory of 2684	2640	rundll32.exe	30
PID 2640 wrote to memory of 2684	2640	rundll32.exe	30
PID 2640 wrote to memory of 2684	2640	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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\locales\cs.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2684

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
76e6c77d27601ff6896e4d70af616048

SHA1
73833fb7dda770557fd948cea94dd68af5114607

SHA256
1b98c2fdb4963b189a72fb99fa3bc0203b3dcb7d4f7e0e818aa9ec16929cdaa5

SHA512
680915fab11ae37dac8cc6c24459ec5265e0e838d43b064983450043e3fab234fd4e6fc504eef0b77b74d1fb1b9c6fa58cdf5c21b34638d1bee7827734d909eb

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