fbd654f31a950c1182206b0670bfc617ef7fd420c974bf742d91b396e697cd77

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-03-2024 20:14

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General

Target

b98e8222b17b3105630a5f47226c79ad.exe
Size

451KB
MD5

b98e8222b17b3105630a5f47226c79ad
SHA1

564d6699054fa15648ae4fce8aec4b554dbfb4fc
SHA256

fbd654f31a950c1182206b0670bfc617ef7fd420c974bf742d91b396e697cd77
SHA512

5518a75b3bff581bb26bfb16003d208285848e9a96c6325e95424b856c62f41f10185258670110c9f222b457bf6b9308ac30e78c19e9dbebb1f51e68af395167
SSDEEP

12288:t8Mvj9g1ElVLms+E+9HOH9zu1GLHrKE+I/ctGgcaw:pyOCFxHOHRu8LHT+I/YD

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\taskmsgs.exe"	b98e8222b17b3105630a5f47226c79ad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\taskmsgs = "C:\\Windows\\taskmsgs.exe.exe"	b98e8222b17b3105630a5f47226c79ad.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Windows.ini	b98e8222b17b3105630a5f47226c79ad.exe
File created	C:\Windows\taskmsgs.exe	b98e8222b17b3105630a5f47226c79ad.exe
File opened for modification	C:\Windows\taskmsgs.exe	b98e8222b17b3105630a5f47226c79ad.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
440	4484	WerFault.exe	88

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4484	b98e8222b17b3105630a5f47226c79ad.exe
4484	b98e8222b17b3105630a5f47226c79ad.exe
4484	b98e8222b17b3105630a5f47226c79ad.exe
4484	b98e8222b17b3105630a5f47226c79ad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4484	b98e8222b17b3105630a5f47226c79ad.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4484	b98e8222b17b3105630a5f47226c79ad.exe

C:\Users\Admin\AppData\Local\Temp\b98e8222b17b3105630a5f47226c79ad.exe
"C:\Users\Admin\AppData\Local\Temp\b98e8222b17b3105630a5f47226c79ad.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
PID:4484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 220
  2⤵
  - Program crash
  PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4484 -ip 4484
1⤵
PID:3272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4484-0-0x0000000000F40000-0x0000000000F41000-memory.dmp

Filesize
4KB

Download
memory/4484-1-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/4484-6-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download