zloader | 76f4db4f373809a4dba455b3370a049295e711f635fa4c070790e1cb907e31a6

Resubmissions

03-08-2023 07:52

230803-jqkwdsca99 10

27-07-2023 11:24

26-12-2022 13:39

26-12-2022 13:39

26-12-2022 13:38

26-12-2022 13:38

Analysis

max time kernel
1798s
max time network
1803s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2023 11:24

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General

Target

b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll
Size

345KB
MD5

adba2ac8f027946da258155b140c068a
SHA1

91b1dceb17403910d7aa9bee1029f11153accff4
SHA256

b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279
SHA512

356865ecaf00b10af50ec1f7ffdcc89249e1eaf2a1648c970393d7c66359e578ce9d6987f66dc49cb769e36e8ea62c4ff17d6b173bc793b61fa81e11e619229f
SSDEEP

6144:q9xZILKtmfbcPK2U6gRURSxE8efnQe+R+FNHmZ04aR31cdpN0V:q9xZIL1bcPRUrURAOn8gTGCPMwV

Score

10^/10

zloader nut 16/02 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

16/02

https://wewalk.cl/post.php

https://dpack-co.com/post.php

https://dr-mirahmadi.ir/post.php

https://indiaastrologyfoundation.in/post.php

https://metisacademy.ir/post.php

https://lan-samarinda.com/post.php

https://pyouleigorgawimbwans.tk/post.php

Attributes

build_id
351

rc4.plain

rsa_pubkey.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 36 IoCs

flow	pid	Process
63	4396	msiexec.exe
78	4396	msiexec.exe
79	4396	msiexec.exe
81	4396	msiexec.exe
82	4396	msiexec.exe
83	4396	msiexec.exe
84	4396	msiexec.exe
88	4396	msiexec.exe
114	4396	msiexec.exe
121	4396	msiexec.exe
122	4396	msiexec.exe
123	4396	msiexec.exe
124	4396	msiexec.exe
125	4396	msiexec.exe
126	4396	msiexec.exe
127	4396	msiexec.exe
138	4396	msiexec.exe
145	4396	msiexec.exe
146	4396	msiexec.exe
147	4396	msiexec.exe
148	4396	msiexec.exe
149	4396	msiexec.exe
150	4396	msiexec.exe
151	4396	msiexec.exe
153	4396	msiexec.exe
257	4396	msiexec.exe
264	4396	msiexec.exe
265	4396	msiexec.exe
266	4396	msiexec.exe
267	4396	msiexec.exe
268	4396	msiexec.exe
269	4396	msiexec.exe
270	4396	msiexec.exe
280	4396	msiexec.exe
287	4396	msiexec.exe
288	4396	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2144 set thread context of 4396	2144	rundll32.exe	96

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4396	msiexec.exe
Token: SeSecurityPrivilege	4396	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 2144	4708	rundll32.exe	85
PID 4708 wrote to memory of 2144	4708	rundll32.exe	85
PID 4708 wrote to memory of 2144	4708	rundll32.exe	85
PID 2144 wrote to memory of 4396	2144	rundll32.exe	96
PID 2144 wrote to memory of 4396	2144	rundll32.exe	96
PID 2144 wrote to memory of 4396	2144	rundll32.exe	96
PID 2144 wrote to memory of 4396	2144	rundll32.exe	96
PID 2144 wrote to memory of 4396	2144	rundll32.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:4396

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5XLATO3O\post[1].htm

Filesize
2B

MD5
81051bcc2cf1bedf378224b0a93e2877

SHA1
ba8ab5a0280b953aa97435ff8946cbcbb2755a27

SHA256
7eb70257593da06f682a3ddda54a9d260d4fc514f645237f5ca74b08f8da61a6

SHA512
1b302a2f1e624a5fb5ad94ddc4e5f8bfd74d26fa37512d0e5face303d8c40eee0d0ffa3649f5da43f439914d128166cb6c4774a7caa3b174d7535451eb697b5d

Download Submit
memory/2144-133-0x0000000074950000-0x0000000074A05000-memory.dmp

Filesize
724KB

Download
memory/2144-134-0x0000000000B80000-0x0000000000B81000-memory.dmp

Filesize
4KB

Download
memory/2144-135-0x0000000074950000-0x0000000074A05000-memory.dmp

Filesize
724KB

Download
memory/2144-136-0x0000000074950000-0x0000000074A05000-memory.dmp

Filesize
724KB

Download
memory/2144-138-0x0000000074950000-0x0000000074A05000-memory.dmp

Filesize
724KB

Download
memory/4396-137-0x0000000000F90000-0x0000000000FB9000-memory.dmp

Filesize
164KB

Download
memory/4396-140-0x0000000000F90000-0x0000000000FB9000-memory.dmp

Filesize
164KB

Download
memory/4396-141-0x0000000000F90000-0x0000000000FB9000-memory.dmp

Filesize
164KB

Download