89becd710336f2209feb37d3b81c1365a6bd5294aa97a55a518e3de3c53e66d0

Analysis

max time kernel
146s
max time network
150s
platform
windows10_x64
resource
win10-en-20211014
submitted
01-12-2021 23:58

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General

Target

fbc3f3a7f0f45884391344b59f3be525~.exe
Size

685KB
MD5

545a4dd9df628154e366b4d6d2cd0d8a
SHA1

8f4119a2b2dbfbd30176fe1dac214f6cad5c4561
SHA256

b04bbb925d5f966d67fbfe7bbd2531e8891b1eb275ef8140006bc48d10e66171
SHA512

ff7fe6d0aae893226bd277c13509584f0169a8804fa85ece1de149e49d9dde379cb1d50990636a5592bbf9abf175e5d5c00344b632183c020ba16556406676f1

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fbc3f3a7f0f45884391344b59f3be525~.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Juknwfue = "C:\\Users\\Admin\\Contacts\\eufwnkuJ.url"	fbc3f3a7f0f45884391344b59f3be525~.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

504 3500 WerFault.exe fbc3f3a7f0f45884391344b59f3be525~.exe

pid	pid_target	process	target process
504	3500	WerFault.exe	fbc3f3a7f0f45884391344b59f3be525~.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe
504	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 504 WerFault.exe
Token: SeBackupPrivilege 504 WerFault.exe
Token: SeDebugPrivilege 504 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	504	WerFault.exe
Token: SeBackupPrivilege	504	WerFault.exe
Token: SeDebugPrivilege	504	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\fbc3f3a7f0f45884391344b59f3be525~.exe
"C:\Users\Admin\AppData\Local\Temp\fbc3f3a7f0f45884391344b59f3be525~.exe"
1⤵
- Adds Run key to start application
PID:3500

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
2⤵
PID:1020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 1984
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:504

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3500-115-0x0000000000540000-0x00000000005EE000-memory.dmp

Filesize
696KB

Download
memory/3500-117-0x0000000002262000-0x0000000002263000-memory.dmp

Filesize
4KB

Download
memory/3500-116-0x0000000002251000-0x0000000002262000-memory.dmp

Filesize
68KB

Download