zloader | acc5fe0088037ddc055f9286380c56583effa1186afe9d08caea3e197b2643fd

Analysis

max time kernel
171s
max time network
194s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
19-04-2022 02:33

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General

Target

acc5fe0088037ddc055f9286380c56583effa1186afe9d08caea3e197b2643fd.dll
Size

764KB
MD5

ebc6187124521528375d17372a16ae94
SHA1

1aee7da350e939d1686cd52c258f05270e63f990
SHA256

acc5fe0088037ddc055f9286380c56583effa1186afe9d08caea3e197b2643fd
SHA512

6e8f3dbc3a3121c00b6574558be8acc3331e7a8b7ca6aa2ae354d9d6ae62a69ffc3541f40b16cd0fb5364dd9f4ec430639a1ffaec987fa2d4dfd0850930f56f5

Score

10^/10

zloader 17/03 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

17/03

https://dhteijwrb.host/milagrecf.php

https://aquolepp.pw/milagrecf.php

Attributes

build_id
92

rc4.plain

Signatures

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Unxi = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Axtuc\\weicbybo.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4156 set thread context of 4444	4156	rundll32.exe	82

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4444	msiexec.exe
Token: SeSecurityPrivilege	4444	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 4156	3100	rundll32.exe	80
PID 3100 wrote to memory of 4156	3100	rundll32.exe	80
PID 3100 wrote to memory of 4156	3100	rundll32.exe	80
PID 4156 wrote to memory of 4444	4156	rundll32.exe	82
PID 4156 wrote to memory of 4444	4156	rundll32.exe	82
PID 4156 wrote to memory of 4444	4156	rundll32.exe	82
PID 4156 wrote to memory of 4444	4156	rundll32.exe	82
PID 4156 wrote to memory of 4444	4156	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\acc5fe0088037ddc055f9286380c56583effa1186afe9d08caea3e197b2643fd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\acc5fe0088037ddc055f9286380c56583effa1186afe9d08caea3e197b2643fd.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4156
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:4444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4156-131-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4156-132-0x0000000000400000-0x00000000004DA000-memory.dmp

Filesize
872KB

Download
memory/4444-134-0x0000000001200000-0x0000000001231000-memory.dmp

Filesize
196KB

Download
memory/4444-135-0x0000000001200000-0x0000000001231000-memory.dmp

Filesize
196KB

Download