522c844f4b9da61dfad183a03f7268c8eab203ac7bb75a1bcc14e96c45acc3f4

Analysis

max time kernel
111s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 06:52

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General

Target

Nemui-main/README.md
Size

1KB
MD5

5ecdff0f8e6d693ee38f9f24b089d111
SHA1

4d789de0542728fcdfa3149f24f33df27b3a46ff
SHA256

38b4c0535a15d06ed51415999516ffaf84151d3042ee386c0aa331272b4fae92
SHA512

35ffc1553ac3b809d04f8e8d541ebf2aeaa3b03d1ff68e99613d6307f48f4ebec9dd8852411b8430f261eaaa209c83a0c13435f060d7024a9e550f0b967d55fb

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-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3000	AcroRd32.exe
3000	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 900	2564	cmd.exe	30
PID 2564 wrote to memory of 900	2564	cmd.exe	30
PID 2564 wrote to memory of 900	2564	cmd.exe	30
PID 900 wrote to memory of 3000	900	rundll32.exe	31
PID 900 wrote to memory of 3000	900	rundll32.exe	31
PID 900 wrote to memory of 3000	900	rundll32.exe	31
PID 900 wrote to memory of 3000	900	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Nemui-main\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Nemui-main\README.md
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:900
- - 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\Nemui-main\README.md"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3000

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
16a295487bfed919a4623e91abfad45a

SHA1
ef25ae145b201f8ce61393e3f25e4c3b56b3ab1f

SHA256
054f3228d3091671be108a5a61fc6407f93ec7ff7b2a3a1463b1187e3a9149ca

SHA512
d0c400aaaac1f846097d332b5280cbb70c251248a0dc0a9829f991489f93e34a31a109003a4be9588cdd9a10b48d8d4114b2706d9fde2d99209e0ec80ac915ea

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