Analysis
- max time kernel
137s - max time network
122s - platform
windows7_x64 - resource
win7-en-20211014 - submitted
06/12/2021, 14:19
Static task
static1
Behavioral task
behavioral1
Sample
b8875df89fabedcab476fa41a2d0ce3b.dll
Resource
win7-en-20211014
0 signatures
0 seconds
General
- Target b8875df89fabedcab476fa41a2d0ce3b.dll
- Size 476KB
- Sample211206-rmvkeshbc6
- SHA256 33dbd70f8f7cc2a6f040b6f6ea3e973856cfd5b1077741cb3b2ee14754aa015a
- MD5 b8875df89fabedcab476fa41a2d0ce3b
- SHA1 114381765ca7fe6a3e0ed20c6357edeaf4fe1e92
- SHA512 f7febc2ada5c80e3a2999527a08dbffe97d1a6d0084e424bd895c58078046c1840997838d82a09ef1dd219b853c738184a69d8882cf9c8fb78369c9f39024909
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
dridex
Botnet
-
10444
C2
-
23.246.204.126:443
-
151.106.39.36:8116
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103.124.144.123:6891
-
172.105.78.60:4664
rc4.plain
rc4.plain
Signatures
-
resource yara_rule behavioral1/memory/1764-57-0x00000000748C0000-0x0000000074939000-memory.dmp dridex_ldr - Program crash 1 IoCs
pid pid_target Process procid_target 568 1764 WerFault.exe 27 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 568 WerFault.exe 568 WerFault.exe 568 WerFault.exe 568 WerFault.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 568 WerFault.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 568 WerFault.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1684 wrote to memory of 1764 1684 rundll32.exe 27 PID 1764 wrote to memory of 568 1764 rundll32.exe 29 PID 1764 wrote to memory of 568 1764 rundll32.exe 29 PID 1764 wrote to memory of 568 1764 rundll32.exe 29 PID 1764 wrote to memory of 568 1764 rundll32.exe 29
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b8875df89fabedcab476fa41a2d0ce3b.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b8875df89fabedcab476fa41a2d0ce3b.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1764 -s 3443⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:568
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