zloader | 38bc13ef112b2f17d4d1a80243fac6a521b5d58228984aae0752d79487fa3b66

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13-11-2024 23:34

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11-11-2024 05:34

11-11-2024 03:05

11-11-2024 03:00

08-11-2024 08:59

08-11-2024 08:55

Analysis

max time kernel
64s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 08:59

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General

Target

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
Size

144KB
MD5

9e9bb42a965b89a9dce86c8b36b24799
SHA1

e2d1161ac7fa3420648ba59f7a5315ed0acb04c2
SHA256

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d
SHA512

e5ba20e364c96260c821bc61eab51906e2075aa0d3755ef25aabfc8f6f9545452930be42d978d96e3a68e2b92120df4940b276c9872ebf36fa50913523c51ce8
SSDEEP

3072:ep1qwbk6Wbh/UR++pz1OBrNtZtHpspurmxwPtnneZY:epoP6WV/C116rNbtHpsYrmSP1neZY

Score

10^/10

zloader main 26.02.2020 botnet discovery persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

26.02.2020

https://airnaa.org/sound.php

https://banog.org/sound.php

https://rayonch.org/sound.php

Attributes

build_id
19

rc4.plain

Signatures

Zloader family
zloader
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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uhufaf = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Yfebof\\ochafud.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 2368 set thread context of 3052 2368 regsvr32.exe msiexec.exe

description	pid	process	target process
PID 2368 set thread context of 3052	2368	regsvr32.exe	msiexec.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

regsvr32.exemsiexec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 3052 msiexec.exe
Token: SeSecurityPrivilege 3052 msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	3052	msiexec.exe
Token: SeSecurityPrivilege	3052	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 1740 wrote to memory of 2368	1740	regsvr32.exe	regsvr32.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe
PID 2368 wrote to memory of 3052	2368	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:3052

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3052-0-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/3052-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/3052-4-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/3052-5-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/3052-7-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download