159cecd0dd4bf6e1d3307ac453f1c78cc688c1064450104605da772a03913b05 | Triage

Analysis

max time kernel
57s
max time network
120s
platform
windows10_x64
resource
win10v200722
submitted
22-10-2020 07:40

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General

Target

MicrosoftFixit20052/Lts_x86.dll
Size

49KB
MD5

b1cd3050f7241e4a238f1c08766df4c8
SHA1

b2590f4ad227a852da9a84e9095e74dc545b3bd1
SHA256

146047bd5e4680263060291694fb1ac74ba3565ecdfa65d92902a29f2d7bb16e
SHA512

198017aebbc2c095cb9783a73aa83991db7bec25b8c9094ea915d52fe5f9f3241e31f2f177887e9f8331fe4e88778e4c935651e50197f3bbcaa8d23e745dca54

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3896 1120 WerFault.exe rundll32.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3896 WerFault.exe
Token: SeBackupPrivilege 3896 WerFault.exe
Token: SeDebugPrivilege 3896 WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3096 wrote to memory of 1120	3096	rundll32.exe	rundll32.exe
PID 3096 wrote to memory of 1120	3096	rundll32.exe	rundll32.exe
PID 3096 wrote to memory of 1120	3096	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MicrosoftFixit20052\Lts_x86.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3096

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MicrosoftFixit20052\Lts_x86.dll,#1
2⤵
PID:1120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 644
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3896

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1120-0-0x0000000000000000-mapping.dmp

Download
memory/1120-3-0x0000000000000000-mapping.dmp

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memory/1120-2-0x0000000000000000-mapping.dmp

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memory/1120-4-0x0000000000000000-mapping.dmp

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memory/3896-1-0x0000000004E50000-0x0000000004E51000-memory.dmp

Filesize
4KB

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memory/3896-5-0x0000000005500000-0x0000000005501000-memory.dmp

Filesize
4KB

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