zloader | bc0b57f04efe4239fcc02f049c97016c653c963de8cbe45bcf9449cd16919f08

Resubmissions

08-12-2023 09:50

231208-lva8vsad95 10

05-02-2022 10:48

220205-mwes4sagdn 10

Analysis

max time kernel
1019s
max time network
1019s
platform
windows7_x64
resource
win7-20231201-en
resource tags

arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
submitted
08-12-2023 09:50

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General

Target

bc0b57f04efe4239fcc02f049c97016c653c963de8cbe45bcf9449cd16919f08.dll
Size

452KB
MD5

a87fab5ef51df54563c1752f4cc5b466
SHA1

1e29f9771c034545e618cdb28e12f1004993f8bf
SHA256

bc0b57f04efe4239fcc02f049c97016c653c963de8cbe45bcf9449cd16919f08
SHA512

2369d6b6769853ff7246031bb7081261a6ecc67590e424f2845337291cc0a1241c24fc2ed340deb8f999befa5dea237df2000c5a0bf0f1e410d2394e0735df65
SSDEEP

6144:lNOKA8716v7ae1wR/+0rtDVgfcw3vR2vRz5Datp8E2lv2avF:lsi716eGwIQDGfh3v+z5WtkR26

Score

10^/10

zloader goosdoc retcrypt botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

goosdoc

Campaign

retcrypt

http://wmwifbajxxbcxmucxmlc.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
117

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 2164 set thread context of 1624	2164	rundll32.exe	31

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1624	msiexec.exe
Token: SeSecurityPrivilege	1624	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 1844 wrote to memory of 2164	1844	rundll32.exe	28
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31
PID 2164 wrote to memory of 1624	2164	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0b57f04efe4239fcc02f049c97016c653c963de8cbe45bcf9449cd16919f08.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0b57f04efe4239fcc02f049c97016c653c963de8cbe45bcf9449cd16919f08.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1624

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1624-7-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1624-6-0x00000000000D0000-0x0000000000104000-memory.dmp

Filesize
208KB

Download
memory/1624-8-0x00000000000D0000-0x0000000000104000-memory.dmp

Filesize
208KB

Download
memory/1624-11-0x00000000000D0000-0x0000000000104000-memory.dmp

Filesize
208KB

Download
memory/2164-0-0x0000000010000000-0x0000000010F81000-memory.dmp

Filesize
15.5MB

Download
memory/2164-1-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2164-2-0x0000000010000000-0x0000000010F81000-memory.dmp

Filesize
15.5MB

Download
memory/2164-9-0x0000000010000000-0x0000000010F81000-memory.dmp

Filesize
15.5MB

Download