eb43edc52b7358dd993e2e6343ae4f59492e4b95651ed7877e17da1f5d214ba6

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 11:59

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General

Target

Samsungwork.bin
Size

22KB
MD5

af7eb8652daecaa96592c6de8992c154
SHA1

a599e26cce6a65f06d6bb44a0d40c34c540e64fd
SHA256

a116b3ab66c8df39a7ed1562bc4c8c479bdbfd2baeb5529eace426be69e4cdb5
SHA512

d8169b471eec243610febf5255f84b5f3bd4c0078325852ea939d661c6caa6db9713a50a5ef0e30c9de1ae4ca2b8c3911a98ccd57b70ec8e7c103cc0a5aa8cac
SSDEEP

96:oZS0VWxJyk2q1m5Za4v7FXHF/zPnHQpf4uMXNQ6YXx51FNIRD4G8ZYlIhOsKRDRI:oYMMI5ZTFLPHQiuMyzx5QvsKRDRyX

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2876	AcroRd32.exe
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 848	2500	cmd.exe	31
PID 2500 wrote to memory of 848	2500	cmd.exe	31
PID 2500 wrote to memory of 848	2500	cmd.exe	31
PID 848 wrote to memory of 2876	848	rundll32.exe	32
PID 848 wrote to memory of 2876	848	rundll32.exe	32
PID 848 wrote to memory of 2876	848	rundll32.exe	32
PID 848 wrote to memory of 2876	848	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Samsungwork.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Samsungwork.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:848
- - 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\Samsungwork.bin"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
5411126aaf176f078e9a2014fac98d0f

SHA1
a6fd99956195480713880b15329f0d351f37471f

SHA256
8bd36171617ef4a98ebfadc3ca5cfa69402e4229801d651604cc6dd7c5a601b9

SHA512
153bce07c1617ddd78192d3d0c28d53c3da0ad4ef1f8c7876c0591b58cf6eefc264f6162c7add1e4e64e331c97d4570943e43a6e1bfc37482eee1e88bed9ac26

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