zloader | a17ba992825ec59510455e3f24acefd734472e0fcc1c223beb3d191d27ae72fa

General

Target

c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll
Size

554KB
MD5

48f3bf2aad96b4893e873cf82d170f54
SHA1

ef34b6817e4142000cf512ed063fbc2beadf5be8
SHA256

c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0
SHA512

1f7cf4b33257490cab2510644bb27adfec039df43c51ab9f860ebeaddc1f523d15169deb1dda32d0ce02fe19ac842c9dceabe8833df7f0a98748d18e508ccb81

Score

10^/10

zloader kev 25/01 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

kev

Campaign

25/01

C2

https://sadnan.com/post.php

https://www.isds.com.my/post.php

https://nawirifarm.co.ke/post.php

https://dev01.perdiscoo.com/post.php

https://ingenieriaoasisdebc.com/post.php

https://brinitezcresan.gq/post.php

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 30 IoCs

Processes:

msiexec.exe

flow	pid	process
6	1664	msiexec.exe
7	1664	msiexec.exe
8	1664	msiexec.exe
9	1664	msiexec.exe
10	1664	msiexec.exe
11	1664	msiexec.exe
12	1664	msiexec.exe
13	1664	msiexec.exe
14	1664	msiexec.exe
15	1664	msiexec.exe
16	1664	msiexec.exe
17	1664	msiexec.exe
18	1664	msiexec.exe
19	1664	msiexec.exe
20	1664	msiexec.exe
21	1664	msiexec.exe
22	1664	msiexec.exe
23	1664	msiexec.exe
24	1664	msiexec.exe
25	1664	msiexec.exe
26	1664	msiexec.exe
28	1664	msiexec.exe
29	1664	msiexec.exe
30	1664	msiexec.exe
32	1664	msiexec.exe
34	1664	msiexec.exe
35	1664	msiexec.exe
38	1664	msiexec.exe
39	1664	msiexec.exe
40	1664	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1716 set thread context of 1664 1716 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1664 msiexec.exe
Token: SeSecurityPrivilege 1664 msiexec.exe

description	pid	process	target process
PID 1716 set thread context of 1664	1716	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1664	msiexec.exe
Token: SeSecurityPrivilege	1664	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 2028 wrote to memory of 1716	2028	regsvr32.exe	regsvr32.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe
PID 1716 wrote to memory of 1664	1716	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:1664

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1664-7-0x0000000000000000-mapping.dmp

Download
memory/1664-9-0x0000000000090000-0x00000000000B6000-memory.dmp

Filesize
152KB

Download
memory/1716-3-0x0000000000000000-mapping.dmp

Download
memory/1716-4-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/1716-5-0x0000000075080000-0x00000000750A6000-memory.dmp

Filesize
152KB

Download
memory/1716-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2000-10-0x000007FEF6B90000-0x000007FEF6E0A000-memory.dmp

Filesize
2.5MB

Download
memory/2028-2-0x000007FEFC511000-0x000007FEFC513000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing