zloader | 8761a16b210e215456f4ad4dffeb624ee2b2b3646971860dc5ffb0f8b82658b0

Resubmissions

10-08-2023 17:12

230810-vq913aff23 10

10-08-2023 16:29

230810-tznnragg4y 10

09-11-2020 20:57

201109-4wpwk1zk1e 10

Analysis

max time kernel
2605s
max time network
2289s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
10-08-2023 17:12

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Report Analysis Logs

General

Target

zte(1).dll
Size

473KB
MD5

2b99305fdd451f60f935efb4fd4fb9be
SHA1

d0c7f705d3d94ccea33654f940c7b2e77448fc3d
SHA256

8761a16b210e215456f4ad4dffeb624ee2b2b3646971860dc5ffb0f8b82658b0
SHA512

7fb8307f9a669fd1ba37a41d4f611d61124370b514fa290fd0d9ad1dcba8f2c0a37e3999ee507944f03d66ac3907ba56bf3fbaaef5409e5ae5e7746f6d7bca0f
SSDEEP

12288:T2s615320KPnJHFlswhjmoUYtIdySZYBk:TZ8V98jmotI2S

Score

10^/10

zloader bot5 bot5 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

bot5

Campaign

bot5

https://militanttra.at/owg.php

Attributes

build_id
15

rc4.plain

rsa_pubkey.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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000\Software\Microsoft\Windows\CurrentVersion\Run\Faexyr = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Gyakku\\gecuoh.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1792 set thread context of 2256 1792 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2256 msiexec.exe
Token: SeSecurityPrivilege 2256 msiexec.exe

description	pid	process	target process
PID 1792 set thread context of 2256	1792	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2256	msiexec.exe
Token: SeSecurityPrivilege	2256	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1792	1996	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe
PID 1792 wrote to memory of 2256	1792	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zte(1).dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zte(1).dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1792

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2256

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1792-55-0x0000000010000000-0x0000000010178000-memory.dmp

Filesize
1.5MB

Download
memory/1792-56-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1792-54-0x0000000010000000-0x0000000010178000-memory.dmp

Filesize
1.5MB

Download
memory/1792-57-0x0000000010000000-0x0000000010178000-memory.dmp

Filesize
1.5MB

Download
memory/1792-66-0x0000000010000000-0x0000000010178000-memory.dmp

Filesize
1.5MB

Download
memory/2256-64-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2256-62-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2256-65-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2256-67-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2256-69-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2256-70-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download
memory/2256-71-0x0000000000090000-0x00000000000BB000-memory.dmp

Filesize
172KB

Download