zloader | de7da2ce5f2d7e5415bc3256cc5b7f97878ae9436497660b9add78829a8650cf

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
22/05/2026, 18:01

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General

Target
tmp87fu93ph.dll
Size 395KB
Sample260522-wl9eeact4l
SHA256 de7da2ce5f2d7e5415bc3256cc5b7f97878ae9436497660b9add78829a8650cf
MD5 4aaf7ca556de0be48d9bb5bed405fa88
SHA1 b85f9bf19e02f7756ee4aeb32c41d4b117a75045
SHA512 31911b68c382f04ca332c55274a31a20822b444f51a4ff407901deb686b035e209cf209ab997c03a40341de0ec868e83e701ae0950d577c7aac6f5f654e74c22
SSDEEP 6144:VhLHWQzNGP/YR2rCnft7BdI7vHFtpuqVtT/C9KxwlfCokKYmT8SNhXDZi5121jYN:/WQzNGYX1dIbHF5V09TlfDTthXc5M1j
TLSH
T174845A0A7F04A4ABF697193D8E94F1F80E463C31AB5562F73AC05F4B76671473898A2C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

botnet july20ssl july20ssl discovery zloader trojan

Malware Config

Extracted

Family

zloader

Botnet

July20SSL

Campaign

July20SSL

https://vlcafxbdjtlvlcduwhga.com/web/post.php
https://softwareserviceupdater3.com/web/post.php
https://softwareserviceupdater4.com/web/post.php

Attributes

build_id
18

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 NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1752 created 3296	1752	rundll32.exe	56

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 3328	1752	rundll32.exe	103

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1752	rundll32.exe
1752	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	rundll32.exe
Token: SeSecurityPrivilege	3328	msiexec.exe
Token: SeSecurityPrivilege	3328	msiexec.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1752	2436	rundll32.exe	86
PID 1752 wrote to memory of 3328	1752	rundll32.exe	103
PID 1752 wrote to memory of 3328	1752	rundll32.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3296
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmp87fu93ph.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmp87fu93ph.dll,#1
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1752
- C:\Windows\SysWOW64\msiexec.exe
  msiexec.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3328

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/1752-0-0x0000000010063000-0x0000000010067000-memory.dmp

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memory/1752-1-0x0000000010000000-0x0000000010073000-memory.dmp

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memory/1752-2-0x0000000010000000-0x0000000010073000-memory.dmp

Download

memory/1752-3-0x0000000010063000-0x0000000010067000-memory.dmp

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memory/1752-5-0x0000000010000000-0x0000000010073000-memory.dmp

Download

memory/1752-11-0x0000000010000000-0x0000000010073000-memory.dmp

Download

memory/3328-9-0x00000000007D0000-0x00000000007FB000-memory.dmp

Download

memory/3328-13-0x00000000007D0000-0x00000000007FB000-memory.dmp

Download