zloader | 5a5948b7d3be846d561f5b6631715e3ab3f25b129519b2305a18b6169372fb9a

Resubmissions

08-12-2023 11:25

231208-njeg9abd25 10

31-10-2020 10:26

201031-67r2e9htne 10

Analysis

max time kernel
1174s
max time network
1177s
platform
windows10-2004_x64
resource
win10v2004-20231201-en
resource tags

arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2023 11:25

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General

Target

april17.dll
Size

446KB
MD5

cd39fa1ea4f0c4c9c2dd8492ff597250
SHA1

8bae4934e78c738ed60f631bc67db34604d35818
SHA256

372bae872e2a2180f04ff14f8fb9f769d733cb4608d37e2bf6e61fee5d396018
SHA512

a0d3d131f1be227c6617fdea3a79c0c07427fa855273534951cd6da87d49a7fabf636ae4e109541e680536920fb2a4cfc48b961ff10e2ad13e81adb396dc1371
SSDEEP

6144:t1/Zy7Ge5qC9axTeJNZ/AuVEpsm8uchgwgKFV0HgdLtF23JQUWjlRdvJ:tZ33fiNZI6m4330HQf24dvJ

Score

10^/10

zloader apr17 spam botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

apr17

Campaign

spam

http://wmwifbajxxbcxmucxmlc.com/post.php

http://ojnxjgfjlftfkkuxxiqd.com/post.php

http://pwkqhdgytsshkoibaake.com/post.php

http://snnmnkxdhflwgthqismb.com/post.php

http://iawfqecrwohcxnhwtofa.com/post.php

http://nlbmfsyplohyaicmxhum.com/post.php

http://fvqlkgedqjiqgapudkgq.com/post.php

http://cmmxhurildiigqghlryq.com/post.php

http://nmqsmbiabjdnuushksas.com/post.php

http://fyratyubvflktyyjiqgq.com/post.php

Attributes

build_id
108

rc4.plain

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4156 set thread context of 3508	4156	rundll32.exe	97

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3508	msiexec.exe
Token: SeSecurityPrivilege	3508	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3900 wrote to memory of 4156	3900	rundll32.exe	59
PID 3900 wrote to memory of 4156	3900	rundll32.exe	59
PID 3900 wrote to memory of 4156	3900	rundll32.exe	59
PID 4156 wrote to memory of 3508	4156	rundll32.exe	97
PID 4156 wrote to memory of 3508	4156	rundll32.exe	97
PID 4156 wrote to memory of 3508	4156	rundll32.exe	97
PID 4156 wrote to memory of 3508	4156	rundll32.exe	97
PID 4156 wrote to memory of 3508	4156	rundll32.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\april17.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\april17.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4156
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3508

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3508-7-0x0000000000E90000-0x0000000000EC4000-memory.dmp

Filesize
208KB

Download
memory/3508-10-0x0000000000E90000-0x0000000000EC4000-memory.dmp

Filesize
208KB

Download
memory/4156-0-0x0000000074CB0000-0x0000000074D33000-memory.dmp

Filesize
524KB

Download
memory/4156-1-0x0000000074CB0000-0x0000000074D33000-memory.dmp

Filesize
524KB

Download
memory/4156-2-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download
memory/4156-8-0x0000000074CB0000-0x0000000074D33000-memory.dmp

Filesize
524KB

Download