Analysis
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max time kernel
138s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2023 17:40
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NEAS.zloader21.0.4.0.dll
Resource
win7-20231020-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
NEAS.zloader21.0.4.0.dll
Resource
win10v2004-20231023-en
windows10-2004-x64
5 signatures
150 seconds
General
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Target
NEAS.zloader21.0.4.0.dll
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Size
300KB
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MD5
81baef090e5c513c1598c348d072ce96
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SHA1
d5795f51ec36ee0dabd073f694692e2aa507a04a
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SHA256
28e752ad86f8f53773bb2e147c1366f5e82b5a8fd2cd80af065decea2e11f694
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SHA512
699b797857f33e6937b2655418509d63d87fe18bd790d94c31a611d45b322aa2923d8be1c1df3e8c66ea7e78b93b693f7f366a38eb6b6ea6a4016a1364665520
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SSDEEP
6144:ODRRTytCG2AD+dMLtfbPM+jf5nde+zDbf+qk7w:zCG2AKdMDPMMff+qkk
Score
10/10
Malware Config
Extracted
Family
zloader
Botnet
19
C2
http://far.spargroarr.org/tv/x.php
http://roo.purcererya.org/tv/x.php
Attributes
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build_id
842086448
rc4.plain
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Heucado = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Daifef\\yfuhugh.dll,DllRegisterServer" msiexec.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 544 set thread context of 1340 544 rundll32.exe 103 -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeSecurityPrivilege 1340 msiexec.exe Token: SeSecurityPrivilege 1340 msiexec.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3700 wrote to memory of 544 3700 rundll32.exe 84 PID 3700 wrote to memory of 544 3700 rundll32.exe 84 PID 3700 wrote to memory of 544 3700 rundll32.exe 84 PID 544 wrote to memory of 1340 544 rundll32.exe 103 PID 544 wrote to memory of 1340 544 rundll32.exe 103 PID 544 wrote to memory of 1340 544 rundll32.exe 103 PID 544 wrote to memory of 1340 544 rundll32.exe 103 PID 544 wrote to memory of 1340 544 rundll32.exe 103
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.zloader21.0.4.0.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.zloader21.0.4.0.dll,#12⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:544 -
C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1340
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