965625c63120fe9b136df94e905cc2d6dde1eaf26a4957901b2ae4c18e20c8b6 | Triage

Analysis

max time kernel
57s
max time network
95s
platform
windows10_x64
resource
win10v20201028
submitted
15-11-2020 22:36

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General

Target

965625c63120fe9b136df94e905cc2d6dde1eaf26a4957901b2ae4c18e20c8b6.dll
Size

208KB
MD5

52b45956e4d5a010f2518d062d6eaf76
SHA1

d41035ece891cef18f1f6e4ea67e4fbc111204f6
SHA256

965625c63120fe9b136df94e905cc2d6dde1eaf26a4957901b2ae4c18e20c8b6
SHA512

05847aeb8cafb695207a9007149f9f9c21e49c14f31b1f1b675c634934ffffd4a5e00be5646cfd87e00f436dce4252922d14107a3de12608b430f3f9efb777fb

Score

9^/10

Malware Config

Signatures

ServiceHost packer 3 IoCs

Detects ServiceHost packer used for .NET malware

Processes:

resource	yara_rule
behavioral2/memory/2064-2-0x0000000000000000-mapping.dmp	servicehost
behavioral2/memory/2064-3-0x0000000000000000-mapping.dmp	servicehost
behavioral2/memory/2064-4-0x0000000000000000-mapping.dmp	servicehost

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

552 2064 WerFault.exe rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe
552	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 552 WerFault.exe
Token: SeBackupPrivilege 552 WerFault.exe
Token: SeDebugPrivilege 552 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1272 wrote to memory of 2064	1272	rundll32.exe	rundll32.exe
PID 1272 wrote to memory of 2064	1272	rundll32.exe	rundll32.exe
PID 1272 wrote to memory of 2064	1272	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\965625c63120fe9b136df94e905cc2d6dde1eaf26a4957901b2ae4c18e20c8b6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\965625c63120fe9b136df94e905cc2d6dde1eaf26a4957901b2ae4c18e20c8b6.dll,#1
2⤵
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 656
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:552

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/552-1-0x00000000046D0000-0x00000000046D1000-memory.dmp

Filesize
4KB

Download
memory/552-5-0x0000000004F30000-0x0000000004F31000-memory.dmp

Filesize
4KB

Download
memory/2064-0-0x0000000000000000-mapping.dmp

Download
memory/2064-2-0x0000000000000000-mapping.dmp

Download
memory/2064-3-0x0000000000000000-mapping.dmp

Download
memory/2064-4-0x0000000000000000-mapping.dmp

Download