ef179f483aaa529e930f32ff5adb5b156cd56488c398797251bb992a5ca19e93

Analysis

max time kernel
118s
max time network
130s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 04:37

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General

Target

locales/bn.pak
Size

1.1MB
MD5

c8173f0cc63ca9e02c07abec94892b53
SHA1

2688b199cc40bb2082247fa451eac1304608e48b
SHA256

e6adcfb4f3b3bccd4a27edadc168b503c36551cd6b27fb24043efeb21f691ce5
SHA512

3d2317430722dc15c5d938fa55235af1caa03dcff7a574b44d37d89e7cf2c94dd2e84518b3eeca4a5a8dbec1b99d94aed97429aaf55c63998002d50ce9cb5019
SSDEEP

3072:HPvKTlIymMTAKhwg8KgMokBw20kzhY0/ukfe0/Q8hhar6j7dkjBbJrlD+B5rwDlo:HPvtMTAKhwlFpKAShhG6j7wBb85mlo

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-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_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-1-5-21-1650401615-1019878084-3673944445-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2460	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2460	AcroRd32.exe
2460	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2080	2620	cmd.exe	29
PID 2620 wrote to memory of 2080	2620	cmd.exe	29
PID 2620 wrote to memory of 2080	2620	cmd.exe	29
PID 2080 wrote to memory of 2460	2080	rundll32.exe	30
PID 2080 wrote to memory of 2460	2080	rundll32.exe	30
PID 2080 wrote to memory of 2460	2080	rundll32.exe	30
PID 2080 wrote to memory of 2460	2080	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:2620
- 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:2080
- - 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:2460

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
1d98e40b8088fa0244dc7846d42e128d

SHA1
c3abf55ce384518ca0430aa805bac0a8406b143c

SHA256
9570f1fdf278e13c3905845199ae7a541822d554b9a6fc2147007d9b586be81e

SHA512
434e800bb81cad2658f1aca960b8464b347376f18c26cd88f390e4880e6227c634c7fb2f3fdea7874c79a644648bf3973e29d033c869dff187ed03432f79135f

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