b1865a08154364f00bc4350a99012043bfca5b14734fb8ab505ade40dd6a0cc2

Analysis

max time kernel
119s
max time network
130s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 21:46

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General

Target

locales/bn.pak
Size

812KB
MD5

fac2c752c57175a4b1f4630e3667123e
SHA1

a2dbcf1dd7b3cac499b9f782c7393ab438039584
SHA256

71f99a67bb310fab8068eeed7ce24ea7624a66051ba4e719d051cc7e67e78001
SHA512

4820704bd92dfb60736da5b84c8bc9135fca484c678585ec9d26dcb90632e382f354d03b539599f4816feb027dd285ff06ed8a520bede56d7a1c590d942e4250
SSDEEP

3072:3V/m0JEVzjcnmbVrH4kSBbdXWSM5QwXlFE:3w0a5rHEBbd+5tle

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2728	AcroRd32.exe
2728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2700	2180	cmd.exe	29
PID 2180 wrote to memory of 2700	2180	cmd.exe	29
PID 2180 wrote to memory of 2700	2180	cmd.exe	29
PID 2700 wrote to memory of 2728	2700	rundll32.exe	30
PID 2700 wrote to memory of 2728	2700	rundll32.exe	30
PID 2700 wrote to memory of 2728	2700	rundll32.exe	30
PID 2700 wrote to memory of 2728	2700	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:2180
- 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:2700
- - 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:2728

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
7447dc20c202a39ad4d7966792953a3d

SHA1
2929e233cc5fb00463761ae7e49c24f3ce84bc8a

SHA256
52332a036c03a4431500a9fd50eff1ee988560f6f2cbac13b182700c727e1ba5

SHA512
ed3cf35af1cd20d203674f1db878f662dc270aae654eca5cb6cd0d1671974f0245767ed8568d7275710dcfdb8099ef07f0c407ed80c725ee88c89667e6e20fcb

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