zloader | 57c7f0bc7a487df329eb3e8b19debde9ce1821e250123227cdc2dfbdd8b1b766

General

Target

57c7f0bc7a487df329eb3e8b19debde9ce1821e250123227cdc2dfbdd8b1b766.dll
Size

250KB
MD5

5970ecc1e667dbfac22baece0305655e
SHA1

5e0dbef986f2456081aa27b8f06430abfa3ab102
SHA256

57c7f0bc7a487df329eb3e8b19debde9ce1821e250123227cdc2dfbdd8b1b766
SHA512

fb99473005cc9fa442cea28ba46b5befd0fea8d09f1a527303e8a02036de7d535bc1cf70505c0d8223e2bbcc6e65ef9d0c54ce0161f864c5e1840f928762365d

Score

10^/10

zloader dllobnova spamca botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

DLLobnova

Campaign

spamCA

C2

https://fdsjfjdsfjdsdsjajjs.com/gate.php

https://idisaudhasdhasdj.com/gate.php

https://dsjdjsjdsadhasdas.com/gate.php

https://dsdjfhdsufudhjas.com/gate.php

https://dsdjfhdsufudhjas.info/gate.php

https://fdsjfjdsfjdsdsjajjs.info/gate.php

https://idisaudhasdhasdj.info/gate.php

https://dsdjfhdsufudhjas.pro/gate.php

https://dsdjfhd9ddksaas.pro/gate.php

Attributes

build_id
12

rc4.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Blocklisted process makes network request 8 IoCs

flow	pid	Process
5	1384	msiexec.exe
7	1384	msiexec.exe
9	1384	msiexec.exe
11	1384	msiexec.exe
13	1384	msiexec.exe
15	1384	msiexec.exe
17	1384	msiexec.exe
19	1384	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Insemuop = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Befiuv\\acywymi.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1428 set thread context of 1384	1428	rundll32.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1384	msiexec.exe
Token: SeSecurityPrivilege	1384	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1292 wrote to memory of 1428	1292	rundll32.exe	27
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30
PID 1428 wrote to memory of 1384	1428	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\57c7f0bc7a487df329eb3e8b19debde9ce1821e250123227cdc2dfbdd8b1b766.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\57c7f0bc7a487df329eb3e8b19debde9ce1821e250123227cdc2dfbdd8b1b766.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blocklisted process makes network request
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:1384

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1384-55-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/1384-56-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/1384-57-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/1384-60-0x0000000000090000-0x00000000000C2000-memory.dmp

Filesize
200KB

Download
memory/1428-54-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1428-58-0x00000000751E0000-0x0000000075220000-memory.dmp

Filesize
256KB

Download

Analysis

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