Analysis
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max time kernel
120s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
21-10-2021 14:03
Static task
static1
General
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Target
1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664.dll
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Size
180KB
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MD5
96f40ac0c0c7fc5477e69cdbde704e2f
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SHA1
b27aaabea10fb55e2f6ef3d9d108c70e89d23a4f
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SHA256
1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664
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SHA512
9bdd669f8c12380ef69d037b74ddfcd55a0faf7046c3094b7c8c0f9bb3a3c2852834d2951e7548d2ea55ad39bc495b839ce0240a08e4c5eaea997262203f9a42
Malware Config
Extracted
Family
dridex
Botnet
22202
C2
155.138.203.91:443
207.180.220.242:8116
46.101.142.214:6891
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/2332-116-0x0000000073F60000-0x0000000073F8F000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2132 2332 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
WerFault.exepid process 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe 2132 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 2132 WerFault.exe Token: SeBackupPrivilege 2132 WerFault.exe Token: SeDebugPrivilege 2132 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3540 wrote to memory of 2332 3540 rundll32.exe rundll32.exe PID 3540 wrote to memory of 2332 3540 rundll32.exe rundll32.exe PID 3540 wrote to memory of 2332 3540 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1b8bca9df2ce17770075563a17faa0aa0906c1a89ca127738acf7f0bd9530664.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 6203⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken