zloader | 1423053f90855d33858db47f354055b660943104c1c18f848c9b7b415979dc5f

Resubmissions

22-11-2023 17:02

231122-vkac9adg64 10

19-01-2021 19:24

210119-s26yznnqsn 10

19-11-2020 13:14

201119-s41ec6lt86 10

Analysis

max time kernel
1749s
max time network
1768s
platform
windows10_x64
resource
win10v20201028
submitted
19-11-2020 13:14

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General

Target

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll

Score

10^/10

zloader main 26.02.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

26.02.2020

https://airnaa.org/sound.php

https://banog.org/sound.php

https://rayonch.org/sound.php

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

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ufecydfe = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Ufofdo\\ibceo.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 900 set thread context of 1272 900 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1272 msiexec.exe
Token: SeSecurityPrivilege 1272 msiexec.exe

description	pid	process	target process
PID 900 set thread context of 1272	900	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1272	msiexec.exe
Token: SeSecurityPrivilege	1272	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 3008 wrote to memory of 900	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 900	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 900	3008	regsvr32.exe	regsvr32.exe
PID 900 wrote to memory of 1272	900	regsvr32.exe	msiexec.exe
PID 900 wrote to memory of 1272	900	regsvr32.exe	msiexec.exe
PID 900 wrote to memory of 1272	900	regsvr32.exe	msiexec.exe
PID 900 wrote to memory of 1272	900	regsvr32.exe	msiexec.exe
PID 900 wrote to memory of 1272	900	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3008

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:900

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1272

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/900-0-0x0000000000000000-mapping.dmp

Download
memory/1272-1-0x0000000000430000-0x0000000000455000-memory.dmp

Filesize
148KB

Download
memory/1272-2-0x0000000000000000-mapping.dmp

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