Analysis
-
max time kernel
187s -
max time network
199s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
26-06-2022 06:00
Static task
static1
Behavioral task
behavioral1
Sample
s7yzrmv13.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
s7yzrmv13.dll
-
Size
476KB
-
MD5
b9df50a14d692e7aac5cf697462379f0
-
SHA1
0ac013a74fa5f75313774fb1c5294a4e0b9a3a75
-
SHA256
0e16f533d18ae86ab8cadc43a44e9ff7fd6586658939b6c60d6ed9201c31f33a
-
SHA512
eeb54214a759e8daef83d0197495b6985db5f37a5a6d8ba3ab941157ded0c149eb6ae3ee930fe7ec5fd22aaee009d0a33c419a9557d4db53c1077c10cb070a9b
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
23.246.204.126:443
151.106.39.36:8116
103.124.144.123:6891
172.105.78.60:4664
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral2/memory/832-132-0x0000000075850000-0x00000000758C9000-memory.dmp dridex_ldr -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3988 832 WerFault.exe rundll32.exe 3568 832 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1112 wrote to memory of 832 1112 rundll32.exe rundll32.exe PID 1112 wrote to memory of 832 1112 rundll32.exe rundll32.exe PID 1112 wrote to memory of 832 1112 rundll32.exe rundll32.exe PID 832 wrote to memory of 3988 832 rundll32.exe WerFault.exe PID 832 wrote to memory of 3988 832 rundll32.exe WerFault.exe PID 832 wrote to memory of 3988 832 rundll32.exe WerFault.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\s7yzrmv13.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\s7yzrmv13.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 832 -s 7003⤵
- Program crash
PID:3988 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 832 -s 7003⤵
- Program crash
PID:3568
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 832 -ip 8321⤵PID:4384