3f70da063d48c6a6921fee36436a7ca0078c499746c43c575d17476c7aeb19e3

Analysis

max time kernel
18s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-05-2024 19:52

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General

Target

locales/bn.pak
Size

1019KB
MD5

ff4f966849b4107535e41d037d9144c7
SHA1

3a973857b061914e8905bda7e8f2bdafa384588e
SHA256

2dc26dee345271f4606650912b0b7b5df68f621f2920864e0e36c1d1b22459b1
SHA512

98772f266f9553f77f91b11dc4589ec8a0930554e9e0b381bbacd8d23ce794c04f6fe821388a6e87cb14cb59c7522c18c06b1af11fc177c7e40ef71242adcba7
SSDEEP

3072:qiTj8zSyVwde8yRWFyW2Ge/a/0hfI0PLvCIOvkMBbStDn5JiXlZ0:bTj8mySc8VcE8vBO7Bby5Il2

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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2540	AcroRd32.exe
2540	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2600	3000	cmd.exe	29
PID 3000 wrote to memory of 2600	3000	cmd.exe	29
PID 3000 wrote to memory of 2600	3000	cmd.exe	29
PID 2600 wrote to memory of 2540	2600	rundll32.exe	30
PID 2600 wrote to memory of 2540	2600	rundll32.exe	30
PID 2600 wrote to memory of 2540	2600	rundll32.exe	30
PID 2600 wrote to memory of 2540	2600	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:3000
- 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:2600
- - 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 use of SetWindowsHookEx
    PID:2540

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
6fa6df237a183bafc627ac1a67169802

SHA1
318185fbb8251ab6a433a622482cd78933088f65

SHA256
d0ac9f6dbd4aa2ae82f7fe5a9e438df6c0ad653386c1fc2ed5960fb7ffab795a

SHA512
af3b9648d3fd34e2adf557788809a05bb78476b39bb0c42fea1d3df14c47c61114ab95d76762d0517de0633de7df997e8540b425abd031f71df3fc7968a6b57c

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