zloader | 5a5948b7d3be846d561f5b6631715e3ab3f25b129519b2305a18b6169372fb9a

Resubmissions

08-12-2023 11:25

231208-njeg9abd25 10

31-10-2020 10:26

201031-67r2e9htne 10

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7v20201028
submitted
31-10-2020 10:26

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General

Target

april17.dll
Size

446KB
MD5

cd39fa1ea4f0c4c9c2dd8492ff597250
SHA1

8bae4934e78c738ed60f631bc67db34604d35818
SHA256

372bae872e2a2180f04ff14f8fb9f769d733cb4608d37e2bf6e61fee5d396018
SHA512

a0d3d131f1be227c6617fdea3a79c0c07427fa855273534951cd6da87d49a7fabf636ae4e109541e680536920fb2a4cfc48b961ff10e2ad13e81adb396dc1371

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

rc4.plain

Signatures

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

Blacklisted process makes network request 1 IoCs

flow	pid	Process
10	112	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 112	1456	rundll32.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	112	msiexec.exe
Token: SeSecurityPrivilege	112	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1924 wrote to memory of 1456	1924	rundll32.exe	26
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30
PID 1456 wrote to memory of 112	1456	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\april17.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- 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:1456
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blacklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:112

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/112-1-0x0000000000110000-0x0000000000144000-memory.dmp

Filesize
208KB

Download
memory/112-2-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/112-3-0x0000000000110000-0x0000000000144000-memory.dmp

Filesize
208KB

Download
memory/1088-5-0x000007FEF6270000-0x000007FEF64EA000-memory.dmp

Filesize
2.5MB

Download