zloader | 2558251e3f8705e621bf2749648c77dce391f3cc870aac9a6fd7119ce79103a2

Analysis

max time kernel
134s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 01:25

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General

Target

6947ee4228ab808e9c91d9d6cd7f6f21_JaffaCakes118.dll
Size

375KB
MD5

6947ee4228ab808e9c91d9d6cd7f6f21
SHA1

006fee40df6b2908d5a6a945fd47ddfe2f32f533
SHA256

2558251e3f8705e621bf2749648c77dce391f3cc870aac9a6fd7119ce79103a2
SHA512

f8c9618ad79a6b0ac574f59e6d06b8e56b037bd5f388122acc66928e2db913e1630fcd3f92078e53913fab71aaa680968c20be0ecc0f0375fc93a373280b6e8c
SSDEEP

6144:sBhX1VLyXidI3XtbNtNjrMUdVMuWVYgneflcVBMYU9ieIRQOHe1itiU4pN1jg:MhXLLyXii3XTTjgSV7W5n97uieILHe1J

Score

10^/10

zloader caspam caspam botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

CASPAM

Campaign

CASPAM

http://marchadvertisingnetwork4.com/post.php

http://marchadvertisingnetwork5.com/post.php

http://marchadvertisingnetwork6.com/post.php

http://marchadvertisingnetwork7.com/post.php

http://marchadvertisingnetwork8.com/post.php

http://marchadvertisingnetwork9.com/post.php

http://marchadvertisingnetwork10.com/post.php

Attributes

build_id
24

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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Cuow = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Yqagy\\ohymc.dll,DllRegisterServer"	msiexec.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
40	4300	msiexec.exe
42	4300	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4480 set thread context of 4300	4480	rundll32.exe	99

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4300	msiexec.exe
Token: SeSecurityPrivilege	4300	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 4480	1300	rundll32.exe	83
PID 1300 wrote to memory of 4480	1300	rundll32.exe	83
PID 1300 wrote to memory of 4480	1300	rundll32.exe	83
PID 4480 wrote to memory of 4300	4480	rundll32.exe	99
PID 4480 wrote to memory of 4300	4480	rundll32.exe	99
PID 4480 wrote to memory of 4300	4480	rundll32.exe	99
PID 4480 wrote to memory of 4300	4480	rundll32.exe	99
PID 4480 wrote to memory of 4300	4480	rundll32.exe	99

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6947ee4228ab808e9c91d9d6cd7f6f21_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6947ee4228ab808e9c91d9d6cd7f6f21_JaffaCakes118.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Blocklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:4300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

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Downloads

memory/4300-6-0x0000000000790000-0x00000000007C0000-memory.dmp

Filesize
192KB

Download
memory/4480-0-0x0000000075290000-0x000000007530D000-memory.dmp

Filesize
500KB

Download
memory/4480-1-0x00000000752EE000-0x00000000752F1000-memory.dmp

Filesize
12KB

Download
memory/4480-2-0x0000000075290000-0x000000007530D000-memory.dmp

Filesize
500KB

Download
memory/4480-8-0x0000000075290000-0x000000007530D000-memory.dmp

Filesize
500KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads