Analysis
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max time kernel
93s -
max time network
103s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
19-04-2021 17:23
Static task
static1
Behavioral task
behavioral1
Sample
b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll
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Size
923KB
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MD5
cbe2a12eabe721f6dd9ffae21c36a9e6
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SHA1
d0c99bcfaedbd1908db9159d8ac8bd1c4e512b0b
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SHA256
b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9
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SHA512
13f346798766c9209dd340267745228347435adeb3f90b3e04a335bda0ac97161dace302703ccfcbdd7a20b805bbfc5c93d821fbbf00bf64ce4503bd9448c77b
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
146.185.170.249:443
62.75.251.60:6601
185.148.168.25:2303
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1880-61-0x0000000074D50000-0x0000000074D8D000-memory.dmp dridex_ldr behavioral1/memory/1880-62-0x0000000074D50000-0x0000000074E50000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1880 rundll32.exe 8 1880 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe PID 1056 wrote to memory of 1880 1056 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1880-59-0x0000000000000000-mapping.dmp
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memory/1880-60-0x00000000766D1000-0x00000000766D3000-memory.dmpFilesize
8KB
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memory/1880-61-0x0000000074D50000-0x0000000074D8D000-memory.dmpFilesize
244KB
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memory/1880-62-0x0000000074D50000-0x0000000074E50000-memory.dmpFilesize
1024KB
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memory/1880-63-0x0000000000170000-0x0000000000171000-memory.dmpFilesize
4KB