zloader | 8f259e85a4e160edebaaaccad8f92ee1e04b0f8abf888e5b761eee5e9bb073e7

Analysis

max time kernel
135s
max time network
137s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 01:50

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General

Target

66ec83aa3631d71cba16fd34d1c0b8669009418a92ba683b8a348cd130150b5b.dll
Size

262KB
MD5

4a64b13ff53aebbab00504f6655ba846
SHA1

7e75f220f6c9e6be9abd0def54f7d9957540598c
SHA256

66ec83aa3631d71cba16fd34d1c0b8669009418a92ba683b8a348cd130150b5b
SHA512

9ab869872466866f2bade4fe40cc50bfbd1a3475834d8be1719f2d6ec4b61b0e1848021c0a9444e20e2d0097d46c0e2cc25bf90e25802ad96dc02f84d394735e

Score

10^/10

zloader kev 27/11 botnet trojan

Malware Config

Extracted

Family

zloader

Botnet

kev

Campaign

27/11

https://hac3r.com/wp-punch.php

https://womtools.com/wp-punch.php

https://valitec.co/wp-punch.php

https://empresascreciendobien.com/server.php

https://smartat.co/error.php

https://teamearenttopdiaty.ga/wp-smarts.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 26 IoCs

Processes:

msiexec.exe

flow	pid	process
14	740	msiexec.exe
16	740	msiexec.exe
17	740	msiexec.exe
18	740	msiexec.exe
19	740	msiexec.exe
20	740	msiexec.exe
21	740	msiexec.exe
23	740	msiexec.exe
24	740	msiexec.exe
25	740	msiexec.exe
26	740	msiexec.exe
27	740	msiexec.exe
28	740	msiexec.exe
30	740	msiexec.exe
31	740	msiexec.exe
32	740	msiexec.exe
33	740	msiexec.exe
34	740	msiexec.exe
35	740	msiexec.exe
37	740	msiexec.exe
38	740	msiexec.exe
39	740	msiexec.exe
40	740	msiexec.exe
41	740	msiexec.exe
42	740	msiexec.exe
44	740	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 2904 set thread context of 740 2904 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 740 msiexec.exe
Token: SeSecurityPrivilege 740 msiexec.exe

description	pid	process	target process
PID 2904 set thread context of 740	2904	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	740	msiexec.exe
Token: SeSecurityPrivilege	740	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1456 wrote to memory of 2904	1456	regsvr32.exe	regsvr32.exe
PID 1456 wrote to memory of 2904	1456	regsvr32.exe	regsvr32.exe
PID 1456 wrote to memory of 2904	1456	regsvr32.exe	regsvr32.exe
PID 2904 wrote to memory of 740	2904	regsvr32.exe	msiexec.exe
PID 2904 wrote to memory of 740	2904	regsvr32.exe	msiexec.exe
PID 2904 wrote to memory of 740	2904	regsvr32.exe	msiexec.exe
PID 2904 wrote to memory of 740	2904	regsvr32.exe	msiexec.exe
PID 2904 wrote to memory of 740	2904	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\66ec83aa3631d71cba16fd34d1c0b8669009418a92ba683b8a348cd130150b5b.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\66ec83aa3631d71cba16fd34d1c0b8669009418a92ba683b8a348cd130150b5b.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2904

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:740

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/740-5-0x0000000000000000-mapping.dmp

Download
memory/740-6-0x0000000000150000-0x0000000000176000-memory.dmp

Filesize
152KB

Download
memory/2904-2-0x0000000000000000-mapping.dmp

Download
memory/2904-3-0x00000000738D0000-0x00000000738F6000-memory.dmp

Filesize
152KB

Download
memory/2904-4-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

Filesize
4KB

Download