zloader | 67b46301815d5ba32f90af114a459810902ba6d97a75821c8455b8103073b499 | Triage

Resubmissions

04-03-2021 13:48

210304-6k8nxhjlda 10

05-06-2020 16:46

200605-edh9dgsrjn 10

Analysis

max time kernel
146s
max time network
150s
platform
windows10_x64
resource
win10v200430
submitted
05-06-2020 16:46

Sharing

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General

Target

w.dll
Size

492KB
MD5

892fbc87fdbcbe9d91e17ae7355eb54c
SHA1

c0e25d2f02a768def644be6c248732da4f91495b
SHA256

67b46301815d5ba32f90af114a459810902ba6d97a75821c8455b8103073b499
SHA512

09c30eef3c57be57ef396ff1c2de92f0cff1b57bea0e56ab6401b844b4c5982c7a56f3ef708d0aff2bb6ea1baaef5cf39098b6623bc529c579b35ad73ea4039a

Score

10^/10

trojan botnet zloader

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 3604 set thread context of 2500 3604 rundll32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2500 msiexec.exe
Token: SeSecurityPrivilege 2500 msiexec.exe

Blacklisted process makes network request 11 IoCs

Processes:

msiexec.exe

flow	pid	process
11	2500	msiexec.exe
13	2500	msiexec.exe
15	2500	msiexec.exe
17	2500	msiexec.exe
18	2500	msiexec.exe
19	2500	msiexec.exe
20	2500	msiexec.exe
23	2500	msiexec.exe
24	2500	msiexec.exe
26	2500	msiexec.exe
28	2500	msiexec.exe

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

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3824 wrote to memory of 3604	3824	rundll32.exe	rundll32.exe
PID 3824 wrote to memory of 3604	3824	rundll32.exe	rundll32.exe
PID 3824 wrote to memory of 3604	3824	rundll32.exe	rundll32.exe
PID 3604 wrote to memory of 2500	3604	rundll32.exe	msiexec.exe
PID 3604 wrote to memory of 2500	3604	rundll32.exe	msiexec.exe
PID 3604 wrote to memory of 2500	3604	rundll32.exe	msiexec.exe
PID 3604 wrote to memory of 2500	3604	rundll32.exe	msiexec.exe
PID 3604 wrote to memory of 2500	3604	rundll32.exe	msiexec.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\w.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3824

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\w.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3604

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
- Blacklisted process makes network request
PID:2500

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2500-0-0x00000000026D0000-0x00000000026FB000-memory.dmp

Filesize
172KB

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