Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
21-04-2021 18:11
Static task
static1
Behavioral task
behavioral1
Sample
8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll
-
Size
157KB
-
MD5
4cb5b90d6f2745e09273279f8ce4fec9
-
SHA1
031a6755689530761728d7df827851ee384fffdf
-
SHA256
8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9
-
SHA512
28f1bfb240e54f0a5292f111b24ad7d90cb6b0aa7ca7e5e3afb5ec7cdf78ef7b38e270f33cfeff5b2f679b7d656b2a61765794299a0ca88077ff903e5cecbafa
Malware Config
Extracted
Family
dridex
Botnet
40112
C2
159.8.59.82:443
51.91.156.39:2303
67.196.50.240:8172
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1636-62-0x0000000074DF0000-0x0000000074E1D000-memory.dmp dridex_ldr -
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe PID 1672 wrote to memory of 1636 1672 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll,#12⤵
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1636-60-0x0000000000000000-mapping.dmp
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memory/1636-61-0x0000000075971000-0x0000000075973000-memory.dmpFilesize
8KB
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memory/1636-62-0x0000000074DF0000-0x0000000074E1D000-memory.dmpFilesize
180KB
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memory/1636-64-0x0000000000230000-0x0000000000236000-memory.dmpFilesize
24KB