242dbfdfe2fb845ea71cf1a04637fe5c3fdfd2f931bd1265040012cd8089ac44

General

Target
fw3.exe
Size 173KB
Sample201221-lbdpmx7f46
SHA256 242dbfdfe2fb845ea71cf1a04637fe5c3fdfd2f931bd1265040012cd8089ac44
MD5 f96d689c49f2a23d1ad53241e46a52af
SHA1 add2cf78750fba16acb49c85bcd18aac791a13f7
SHA512 f95fcfde6870f8e9c7ea47b7ac17f77699b4a25218acb3e98a89a26c7655d34b6f1cc2a0f3965a04d1f5794b42e701e245ed31510ac0d51073f7b9d681ded71e
MD5 SHA1 SHA512

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
800	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
748	fw3.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 748 set thread context of 1340	748	fw3.exe	29

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1064	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1340	fw3.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
748	fw3.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 748 wrote to memory of 1340	748	fw3.exe	29
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 1340 wrote to memory of 800	1340	fw3.exe	32
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34
PID 800 wrote to memory of 1064	800	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\fw3.exe
"C:\Users\Admin\AppData\Local\Temp\fw3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\fw3.exe
  "C:\Users\Admin\AppData\Local\Temp\fw3.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1340
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\fw3.exe
    3⤵
    - Deletes itself
    - Suspicious use of WriteProcessMemory
    PID:800
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 3
      4⤵
      Delays execution with timeout.exe
      PID:1064

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1340-3-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/1540-5-0x000007FEF6350000-0x000007FEF65CA000-memory.dmp