zloader | c4f3e1c36ef734927967d40bba87fc620abe5c5049b0e67fd3cc3dab9c763c7a

Analysis

max time kernel
140s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 23:27

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General

Target

3718fe99f772c81aa908369cd7279eac_JaffaCakes118.dll
Size

170KB
MD5

3718fe99f772c81aa908369cd7279eac
SHA1

34f02fba4e619d718b69bec2152a75683fa6a3c8
SHA256

c4f3e1c36ef734927967d40bba87fc620abe5c5049b0e67fd3cc3dab9c763c7a
SHA512

a86468e74665e1b26cb3233a84e4eae4c950b7c6ab24bd680c0da836cb8691eeae6b92dd8c603c1e03fcfc1c9c11f8a277b99a1d0d0b5e188ea03db4fc68df2c
SSDEEP

3072:REOpmT46vL0hxtHlGAJyezW+iVu8FsVWswU5rp4h:RiTvvAhfAAJrriVdsVWGI

Score

10^/10

zloader botnet persistence trojan

Malware Config

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-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Excoyre = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Ynsuy\\usbyq.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1584 set thread context of 512 1584 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 512 msiexec.exe
Token: SeSecurityPrivilege 512 msiexec.exe

description	pid	process	target process
PID 1584 set thread context of 512	1584	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	512	msiexec.exe
Token: SeSecurityPrivilege	512	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1456 wrote to memory of 1584	1456	regsvr32.exe	regsvr32.exe
PID 1456 wrote to memory of 1584	1456	regsvr32.exe	regsvr32.exe
PID 1456 wrote to memory of 1584	1456	regsvr32.exe	regsvr32.exe
PID 1584 wrote to memory of 512	1584	regsvr32.exe	msiexec.exe
PID 1584 wrote to memory of 512	1584	regsvr32.exe	msiexec.exe
PID 1584 wrote to memory of 512	1584	regsvr32.exe	msiexec.exe
PID 1584 wrote to memory of 512	1584	regsvr32.exe	msiexec.exe
PID 1584 wrote to memory of 512	1584	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3718fe99f772c81aa908369cd7279eac_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\3718fe99f772c81aa908369cd7279eac_JaffaCakes118.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1584

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:512

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/512-0-0x00000000004B0000-0x00000000004E0000-memory.dmp

Filesize
192KB

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