zloader | ad658b2da165f31ac7649cf909c5b3330f2e3efde15f0196edc0f90f462965ea

Analysis

max time kernel
149s
max time network
144s
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, 18:46

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General

Target
tmpr3683h64.dll
Size 647KB
Sample260522-xerfpadt9k
SHA256 ad658b2da165f31ac7649cf909c5b3330f2e3efde15f0196edc0f90f462965ea
MD5 5be4b273c79b99ead136b2b7f285cd4b
SHA1 57103e1316cc7d7728542f7e26fda6396f8ccfdc
SHA512 95e3401b86235bb74a6aa1c4d20b35e4050de42aa3f9c0dbe0113ec85f7c6e69e581a3b99a29039782c13ec9a1af06fb7c5a3577d8e354f62e902917b6016a82
SSDEEP 12288:yFyxomntU5cu7cGDD+pJ7ZwwF3E+pgQbRzFyWBaobi/jDnQAVVR/VUR:yFyxomntU5dapcuxpgeHmPjVR/VU
TLSH
T1B4E4BE05B791D038F9B726F98EBEA1B8943D7DA05B2494CB23C41AEF55246F1AC30727
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

botnet bot5 bot5 discovery zloader trojan

Malware Config

Extracted

Family

zloader

Botnet

bot5

Campaign

bot5

https://militanttra.at/owg.php

Attributes

build_id
11

rc4.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 4772 set thread context of 1892	4772	rundll32.exe	102

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 use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1892	msiexec.exe
Token: SeSecurityPrivilege	1892	msiexec.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 4772	2076	rundll32.exe	87
PID 4772 wrote to memory of 1892	4772	rundll32.exe	102
PID 4772 wrote to memory of 1892	4772	rundll32.exe	102

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpr3683h64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpr3683h64.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1892

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/1892-6-0x0000000000BB0000-0x0000000000BE7000-memory.dmp

Download

memory/1892-9-0x0000000000BB0000-0x0000000000BE7000-memory.dmp

Download

memory/1892-10-0x0000000000BB0000-0x0000000000BE7000-memory.dmp

Download

memory/4772-0-0x00000000003F0000-0x00000000003F1000-memory.dmp

Download

memory/4772-1-0x0000000075420000-0x00000000755C1000-memory.dmp

Download

memory/4772-2-0x0000000075420000-0x00000000755C1000-memory.dmp

Download

memory/4772-3-0x00000000003F0000-0x00000000003F1000-memory.dmp

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memory/4772-7-0x0000000075420000-0x00000000755C1000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads