zloader | 455c21fbac342659cd4b5cc162772117cce60f6b59f04dba0dd4327868a428eb | Triage

Analysis

max time kernel
134s
max time network
125s
platform
windows10_x64
resource
win10v200430
submitted
30-06-2020 02:45

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General

Target

SecuriteInfo.com.Win32.Kryptik.HENB.25036.dll
Size

579KB
MD5

08dac5157102790bb1c6d3a65660db37
SHA1

e48fc7a827613aa62fde4c38d239704bfb6d8b95
SHA256

455c21fbac342659cd4b5cc162772117cce60f6b59f04dba0dd4327868a428eb
SHA512

a006c26cdd8da705cbadc9f9837efe4c4feed5ba8dbf5348520a3e66c2c56ab5842c74bdae7ad1cc255a4be0f763325301784190d26bcd7691e43f9f7b2e19de

Score

10^/10

trojan botnet zloader

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 4036 created 3008 4036 rundll32.exe Explorer.EXE
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 4036 set thread context of 2740 4036 rundll32.exe msiexec.exe

Blacklisted process makes network request 16 IoCs

Processes:

msiexec.exe

flow	pid	process
8	2740	msiexec.exe
9	2740	msiexec.exe
10	2740	msiexec.exe
11	2740	msiexec.exe
12	2740	msiexec.exe
13	2740	msiexec.exe
15	2740	msiexec.exe
17	2740	msiexec.exe
19	2740	msiexec.exe
21	2740	msiexec.exe
22	2740	msiexec.exe
23	2740	msiexec.exe
24	2740	msiexec.exe
25	2740	msiexec.exe
26	2740	msiexec.exe
28	2740	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 896 wrote to memory of 4036	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 4036	896	rundll32.exe	rundll32.exe
PID 896 wrote to memory of 4036	896	rundll32.exe	rundll32.exe
PID 4036 wrote to memory of 2740	4036	rundll32.exe	msiexec.exe
PID 4036 wrote to memory of 2740	4036	rundll32.exe	msiexec.exe
PID 4036 wrote to memory of 2740	4036	rundll32.exe	msiexec.exe
PID 4036 wrote to memory of 2740	4036	rundll32.exe	msiexec.exe
PID 4036 wrote to memory of 2740	4036	rundll32.exe	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

rundll32.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 4036 rundll32.exe
Token: SeSecurityPrivilege 2740 msiexec.exe
Token: SeSecurityPrivilege 2740 msiexec.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

4036 rundll32.exe
4036 rundll32.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3008

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Kryptik.HENB.25036.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:896

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Kryptik.HENB.25036.dll,#1
3⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:4036

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
2⤵
- Blacklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:2740

Network

MITRE ATT&CK Matrix

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Downloads

memory/2740-1-0x00000000005B0000-0x00000000005DC000-memory.dmp

Filesize
176KB

Download
memory/2740-2-0x0000000000000000-mapping.dmp

Download
memory/4036-0-0x0000000000000000-mapping.dmp

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