zloader | 4b2f8907da76b79748fc3d05e76fb0002baddca9b9e081c95770e345e8502af4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
22/05/2026, 17:55

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General

Target
tmpvoyscw76.dll
Size 356KB
Sample260522-whd44aev6s
SHA256 4b2f8907da76b79748fc3d05e76fb0002baddca9b9e081c95770e345e8502af4
MD5 fc7b58e72a78c221ccfb0832e6defd7e
SHA1 14f814993587906e8e24b710c3cbe5c06798851a
SHA512 9c1697a4ad61d9d0eb9703464870a4d374e1835052cb98846d0305bc996ba3395f5ae83b242b41ad8ab5bb7ae02989d38e638ed772cf194caadf0db1d5271e12
SSDEEP 6144:IOA9EZ9HHOsAFPtetI7AW7JOpoTIXbv6M19HBqxJPVZ5IebbnB:9A9EZrAFPtkI751OnrRbOJ1P
TLSH
T1FA746D2033B5442CF3574B3D88A2C2735999FD82D575BDEF30C12E8B64472D386A9B9A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

botnet june25 june discovery zloader trojan

Malware Config

Extracted

Family

zloader

Botnet

june25

Campaign

june

http://snnmnkxdhflwgthqismb.com/web/post.php
http://nlbmfsyplohyaicmxhum.com/web/post.php
http://softwareserviceupdater1.com/web/post.php
http://softwareserviceupdater2.com/web/post.php

Attributes

build_id
9

rc4.plain

rsa_pubkey.plain

Signatures

Family: Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 788	2116	regsvr32.exe	92

System Location Discovery: System Language Discovery 1 TTPs 2 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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	788	msiexec.exe
Token: SeSecurityPrivilege	788	msiexec.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 2116	1132	regsvr32.exe	83
PID 2116 wrote to memory of 788	2116	regsvr32.exe	92
PID 2116 wrote to memory of 788	2116	regsvr32.exe	92

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\tmpvoyscw76.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\tmpvoyscw76.dll
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:788

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

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Downloads

memory/788-10-0x00000000003D0000-0x00000000003FB000-memory.dmp

Download

memory/788-13-0x00000000003D0000-0x00000000003FB000-memory.dmp

Download

memory/2116-3-0x0000000010000000-0x0000000010159000-memory.dmp

Download

memory/2116-5-0x0000000010000000-0x0000000010159000-memory.dmp

Download

memory/2116-4-0x0000000010054000-0x0000000010059000-memory.dmp

Download

memory/2116-2-0x0000000010000000-0x0000000010159000-memory.dmp

Download

memory/2116-0-0x0000000010000000-0x0000000010159000-memory.dmp

Download

memory/2116-1-0x0000000010000000-0x0000000010159000-memory.dmp

Download

memory/2116-11-0x0000000010000000-0x0000000010159000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads