zloader | e62889be5bf912d37044d83aab08dfa85c7863ec9baeac93e0397e03a407f95a

General

Target

e62889be5bf912d37044d83aab08dfa85c7863ec9baeac93e0397e03a407f95a.dll
Size

860KB
MD5

bba9ace9dc7cce4cac9439a43fa4c9a0
SHA1

8a66109684bfb149ae5f59adaceb380b040f1afc
SHA256

e62889be5bf912d37044d83aab08dfa85c7863ec9baeac93e0397e03a407f95a
SHA512

49ab85bd8272bb8e54b93cb899af72cfaf169b0db39ac334d60e2e13daa1c393e6e7e563d308d002b9e9724a51740f6a860176885afcc1473fa9a04587134d82

Score

10^/10

zloader main 19.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

19.04.2020

C2

https://spardanos.com/sound.php

https://lonehee.com/sound.php

https://surgued.com/sound.php

https://tremood.com/sound.php

https://soceneo.com/sound.php

https://baatiot.com/sound.php

https://welefus.com/sound.php

https://maremeo.com/sound.php

Attributes

build_id
39

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\Neaxz = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Yxpyu\\arenevtu.dll,DllRegisterServer"	msiexec.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1132 set thread context of 828 1132 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 828 msiexec.exe
Token: SeSecurityPrivilege 828 msiexec.exe

description	pid	process	target process
PID 1132 set thread context of 828	1132	rundll32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	828	msiexec.exe
Token: SeSecurityPrivilege	828	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1232 wrote to memory of 1132	1232	rundll32.exe	rundll32.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe
PID 1132 wrote to memory of 828	1132	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e62889be5bf912d37044d83aab08dfa85c7863ec9baeac93e0397e03a407f95a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1232

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e62889be5bf912d37044d83aab08dfa85c7863ec9baeac93e0397e03a407f95a.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1132

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:828

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/828-56-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/828-57-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/828-58-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/828-60-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/1132-53-0x0000000075B51000-0x0000000075B53000-memory.dmp

Filesize
8KB

Download
memory/1132-54-0x00000000001E0000-0x0000000000238000-memory.dmp

Filesize
352KB

Download
memory/1132-55-0x0000000010000000-0x00000000100E7000-memory.dmp

Filesize
924KB

Download

Analysis

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