Analysis
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max time kernel
144s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 20:51
Static task
static1
Behavioral task
behavioral1
Sample
sustenance.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
sustenance.dll
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
sustenance.dll
-
Size
525KB
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MD5
d50829ab5499f6ec3a0829515db611d0
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SHA1
d6d5ea77c50e01a1472e8ea7dbd1380df65fe0b4
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SHA256
c194e82e8a3ada40421b28e668c9135f09f9336732dc31053fc0cebf7be97564
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SHA512
104e1e5a50e0928d96cf28c560fbab1006e3cbd049edc661e8512eabee2cc80119e143359a14ff6d6e509c0cd2ea8ef64a137f6010e017a36293485d134a88b9
Malware Config
Extracted
Family
zloader
Botnet
CAN1
Campaign
VBSDLL5
C2
https://studentsclasses.com/post.php
https://booking-king.com/post.php
rc4.plain
rsa_pubkey.plain
Signatures
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run msiexec.exe Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Upgiofgi = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Cyfocy\\zeilu.dll" msiexec.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 1996 set thread context of 1704 1996 rundll32.exe msiexec.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
msiexec.exedescription pid process Token: SeSecurityPrivilege 1704 msiexec.exe Token: SeSecurityPrivilege 1704 msiexec.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1996 1056 rundll32.exe rundll32.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe PID 1996 wrote to memory of 1704 1996 rundll32.exe msiexec.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\sustenance.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\sustenance.dll,#12⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1216-5-0x000007FEF6730000-0x000007FEF69AA000-memory.dmpFilesize
2.5MB
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memory/1704-2-0x0000000000100000-0x0000000000101000-memory.dmpFilesize
4KB
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memory/1704-1-0x00000000000D0000-0x00000000000FB000-memory.dmpFilesize
172KB
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memory/1704-3-0x00000000000D0000-0x00000000000FB000-memory.dmpFilesize
172KB
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memory/1704-4-0x0000000000000000-mapping.dmp
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memory/1996-0-0x0000000000000000-mapping.dmp