4d8daf45a5fcf7480739974e1d9ecac7370462f66196dd14b9a38020120dc202

Resubmissions

02-06-2024 23:20

240602-3bvxlaag6v 7

02-06-2024 23:16

240602-29dwasbg87 4

Analysis

max time kernel
121s
max time network
131s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 23:16

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General

Target

locales/bn.pak
Size

911KB
MD5

35f1083544e86bb85fe5860b36b743e2
SHA1

27ad8b23fc03f9b26eb5125e886d18ee3798765b
SHA256

28e1441c4950a90717ebd0641b1f0b4a087cbddeac39edb2618b7d24fbf5a58d
SHA512

69fd40b1d1ffab122c244a7111972fa8b2d6b38c595acee8c6b650a595eb756c35f0cd774d8a7b79656258ee1dca9b6fe0a72e6bc38901804e62ffcf9976ae1c
SSDEEP

3072:MtVVy6YHuQ4qxkVxCp2tUkbBb5OMDK5T0Xl+IP:GVVMH5ECAt5Bb5i5clR

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-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1148	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1148	AcroRd32.exe
1148	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 2656	1252	cmd.exe	29
PID 1252 wrote to memory of 2656	1252	cmd.exe	29
PID 1252 wrote to memory of 2656	1252	cmd.exe	29
PID 2656 wrote to memory of 1148	2656	rundll32.exe	30
PID 2656 wrote to memory of 1148	2656	rundll32.exe	30
PID 2656 wrote to memory of 1148	2656	rundll32.exe	30
PID 2656 wrote to memory of 1148	2656	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2656
- - 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\bn.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1148

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
14742425795440df142eecc17026b65f

SHA1
480cd5e36f9d40dbc12bb56e6c8b0c785163c19d

SHA256
515554a5b16a29b43d6520bb027fa3984ee8f16a26e0b9f546182d3324f729a3

SHA512
aa904b5ef36c129b80ba20ac96aa8728ff514f0deb1cd496d448bc20023c9277fd35c509cf867e3836cc7186aa79a29d950d9776b70db6a7b49c8dfda0de1f46

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