File name:

remcos_a.exe

Full analysis: https://app.any.run/tasks/76a9ed5c-d73d-4c4e-8fdb-97a5e984962a
Verdict: Malicious activity
Threats:

Remcos is a commercially distributed remote administration and surveillance tool that has been widely observed in unauthorized deployments, where threat actors use it to perform remote actions on compromised machines. It is actively maintained by its vendor, with new versions and feature updates released on a frequent, near-monthly basis.

Analysis date: January 20, 2024, 20:46:51
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
remcos
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5:

D2A4237DA031B7D18B77A4015B1A36BB

SHA1:

D2406C3F0CFA21366DD7267DDCDCD405E2E6407F

SHA256:

840FC6550D4FBAA21D3C66479574EB51C9859BFBF9C4C12366EC329AAD05A770

SSDEEP:

6144:YCJeAV9BKop4LoGdPtohtR7+lALpVjtaXEGr3TyM90TwVxqNXyu5rQWkcWVVVVVX:YCgIBLp4LoIWh/7+lALpBtaXEGrjETwL

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Drops the executable file immediately after the start

      • remcos_a.exe (PID: 2044)
    • REMCOS has been detected (YARA)

      • remcos_a.exe (PID: 2044)
  • SUSPICIOUS

    • Connects to unusual port

      • remcos_a.exe (PID: 2044)
  • INFO

    • Checks supported languages

      • remcos_a.exe (PID: 2044)
    • Reads product name

      • remcos_a.exe (PID: 2044)
    • Reads Environment values

      • remcos_a.exe (PID: 2044)
    • Reads the computer name

      • remcos_a.exe (PID: 2044)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | UPX compressed Win32 Executable (64.2)
.dll | Win32 Dynamic Link Library (generic) (15.6)
.exe | Win32 Executable (generic) (10.6)
.exe | Generic Win/DOS Executable (4.7)
.exe | DOS Executable Generic (4.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2023:11:26 10:44:26+01:00
ImageFileCharacteristics: No relocs, Executable, 32-bit
PEType: PE32
LinkerVersion: 14
CodeSize: 196608
InitializedDataSize: 20480
UninitializedDataSize: 290816
EntryPoint: 0x77c50
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
35
Monitored processes
1
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #REMCOS remcos_a.exe

Process information

PID
CMD
Path
Indicators
Parent process
2044"C:\Users\admin\AppData\Local\Temp\remcos_a.exe" C:\Users\admin\AppData\Local\Temp\remcos_a.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\remcos_a.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
Total events
144
Read events
144
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
8
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2044
remcos_a.exe
192.168.193.1:2404
unknown
4
System
192.168.100.255:137
whitelisted
1080
svchost.exe
224.0.0.252:5355
unknown
4
System
192.168.100.255:138
whitelisted

DNS requests

No data

Threats

No threats detected
No debug info