zloader | 28e752ad86f8f53773bb2e147c1366f5e82b5a8fd2cd80af065decea2e11f694

Resubmissions

21-11-2023 16:25

231121-twy1baff29 10

17-11-2023 17:40

231117-v9bydach7x 10

Analysis

max time kernel
273s
max time network
275s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
21-11-2023 16:25

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General

Target

NEAS.zloader21.0.4.0.dll
Size

300KB
MD5

81baef090e5c513c1598c348d072ce96
SHA1

d5795f51ec36ee0dabd073f694692e2aa507a04a
SHA256

28e752ad86f8f53773bb2e147c1366f5e82b5a8fd2cd80af065decea2e11f694
SHA512

699b797857f33e6937b2655418509d63d87fe18bd790d94c31a611d45b322aa2923d8be1c1df3e8c66ea7e78b93b693f7f366a38eb6b6ea6a4016a1364665520
SSDEEP

6144:ODRRTytCG2AD+dMLtfbPM+jf5nde+zDbf+qk7w:zCG2AKdMDPMMff+qkk

Score

10^/10

zloader 19 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

http://far.spargroarr.org/tv/x.php

http://roo.purcererya.org/tv/x.php

Attributes

build_id
842086448

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-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dedyhuih = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Fucu\\fyhuo.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2620	2912	rundll32.exe	29

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2620	msiexec.exe
Token: SeSecurityPrivilege	2620	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2488 wrote to memory of 2912	2488	rundll32.exe	28
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29
PID 2912 wrote to memory of 2620	2912	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.zloader21.0.4.0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.zloader21.0.4.0.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:2620

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

Replay Monitor

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Downloads

memory/2620-6-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2620-8-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2620-10-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2620-12-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2620-14-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2912-0-0x0000000002080000-0x00000000029D0000-memory.dmp

Filesize
9.3MB

Download
memory/2912-2-0x0000000002080000-0x00000000029D0000-memory.dmp

Filesize
9.3MB

Download
memory/2912-3-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2912-4-0x0000000002080000-0x00000000029D0000-memory.dmp

Filesize
9.3MB

Download
memory/2912-5-0x0000000002080000-0x00000000029D0000-memory.dmp

Filesize
9.3MB

Download
memory/2912-11-0x0000000002080000-0x00000000029D0000-memory.dmp

Filesize
9.3MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads