zloader | bf98283002b88ad478a18eabbc356dd1c4c4a03d716b408b06610ee2a380eae1

Analysis

max time kernel
84s
max time network
90s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 01:09

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General

Target

d294955e1962a7342f6706facfbc735b8d84e94bf1de9ed0d7aa87bfc838f1f8.dll
Size

192KB
MD5

973392c2fd7228262e52becf3bfe2051
SHA1

d309f4073f2a3244e71013996b8ea8e6fcc7b16f
SHA256

d294955e1962a7342f6706facfbc735b8d84e94bf1de9ed0d7aa87bfc838f1f8
SHA512

58bbbbac404e2aa70c7c3dd65c3cf7356387a6632874b3e3ba896f0c18396dc3db1232d13fd2456e3ec4c138b4a2e90b45e2c6964d9b177415e2068f5d340ff7

Score

10^/10

zloader 10/03 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

10/03

https://dhteijwrb.host/milagrecf.php

https://aquolepp.pw/milagrecf.php

rc4.plain

Signatures

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uhseegxe = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Fiecy\\ektiek.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1764 set thread context of 2260 1764 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2260 msiexec.exe
Token: SeSecurityPrivilege 2260 msiexec.exe

description	pid	process	target process
PID 1764 set thread context of 2260	1764	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2260	msiexec.exe
Token: SeSecurityPrivilege	2260	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 508 wrote to memory of 1764	508	regsvr32.exe	regsvr32.exe
PID 508 wrote to memory of 1764	508	regsvr32.exe	regsvr32.exe
PID 508 wrote to memory of 1764	508	regsvr32.exe	regsvr32.exe
PID 1764 wrote to memory of 2260	1764	regsvr32.exe	msiexec.exe
PID 1764 wrote to memory of 2260	1764	regsvr32.exe	msiexec.exe
PID 1764 wrote to memory of 2260	1764	regsvr32.exe	msiexec.exe
PID 1764 wrote to memory of 2260	1764	regsvr32.exe	msiexec.exe
PID 1764 wrote to memory of 2260	1764	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\d294955e1962a7342f6706facfbc735b8d84e94bf1de9ed0d7aa87bfc838f1f8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:508

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\d294955e1962a7342f6706facfbc735b8d84e94bf1de9ed0d7aa87bfc838f1f8.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2260

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1764-2-0x0000000000000000-mapping.dmp

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memory/2260-3-0x0000000000000000-mapping.dmp

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memory/2260-4-0x00000000005C0000-0x00000000005F0000-memory.dmp

Filesize
192KB

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