matanbuchus | 77a53dc757fdf381d3906ab256b74ad3cdb7628261c58a62bcc9c6ca605307ba

Analysis

max time kernel
149s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 16:24

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General

Target
77a53dc757fdf381d3906ab256b74ad3cdb7628261c58a62bcc9c6ca605307ba.dll
Size 1.2MB
Sample260722-twe77shb65
SHA256 77a53dc757fdf381d3906ab256b74ad3cdb7628261c58a62bcc9c6ca605307ba
MD5 1ff365902d427237cf9965779ef65ad0
SHA1 cd53bfe4b85dad062121e337db4ef3e16cb3267a
SHA512 42ce597798efc9d9f5a22293fe471d15d81e1732393173f914d2f5184aa024e9796a8e69fa440c3b53ac9d50d5c8e85485bb8dca1d817c672cad43dd6a989890
SSDEEP 24576:S2Zm93HeH5n7tDGKoORmoSVPbi7VaqKFxPTw/3kPoouW6Ds69DMfV87ZqEArCe:Se43+H5n7tiK3RmhVPb83kPfv6DsZfMo
TLSH
T130454B26F201E609D05B0178BB25D7AA689C3530578558D37BC2BF9E3E616F287B9F03
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery matanbuchus loader

Malware Config

Signatures

Family: Matanbuchus
Matanbuchus is a loader sold as MaaS first seen in February 2021.
loader matanbuchus

Badlisted process makes network request 5 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	480	rundll32.exe
3	480	rundll32.exe
4	480	rundll32.exe
6	480	rundll32.exe
8	480	rundll32.exe

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	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
480	rundll32.exe
480	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 480	4288	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\77a53dc757fdf381d3906ab256b74ad3cdb7628261c58a62bcc9c6ca605307ba.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\77a53dc757fdf381d3906ab256b74ad3cdb7628261c58a62bcc9c6ca605307ba.dll,#1
  2⤵
  - Badlisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:480

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/480-0-0x0000000071090000-0x0000000074B6A000-memory.dmp

Download

memory/480-1-0x0000000071090000-0x0000000074B6A000-memory.dmp

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memory/480-7-0x0000000071090000-0x0000000074B6A000-memory.dmp

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