MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9056f6f0607b94a11f0e53f7c54c605e66479d0219ffb9e7a45f1c439da2dce6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



RemcosRAT


Vendor detections: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: 9056f6f0607b94a11f0e53f7c54c605e66479d0219ffb9e7a45f1c439da2dce6
SHA3-384 hash: 2e8009f5a0d4c1a4ccdef3ea980c9c38c977498031cfa1b2ad433d14752bc07cc44a26dd0862953ab112105259305372
SHA1 hash: 4b9f7ed310e2f81505fc4c49a5d6fc822932a673
MD5 hash: ec01af556c3ed0393e46909ca5287cd0
humanhash: video-alanine-apart-october
File name:sail98760.scr
Download: download sample
Signature RemcosRAT
File size:1'400'320 bytes
First seen:2024-01-18 08:55:18 UTC
Last seen:2024-01-24 14:02:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:fqDEvCTbMWu7rQYlBQcBiT6rprG8a4Qas2UzY0yIHtkdH:fTvC/MTQYxsWR7a4Qas2MY0jN
TLSH T15255DF4233D1C066FFAB95330B9AF61196BDAD260133A51F13A92DBDF9701A1063E763
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ccccc6b0b0889896 (1 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
347
Origin country :
HU HU
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit bladabindi coinminer control greyware keylogger lolbin masquerade packed remcos shell32 threat
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
LockBit Ransomware
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates autostart registry keys with suspicious names
Delayed program exit found
Drops VBS files to the startup folder
Found API chain indicative of sandbox detection
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Snort IDS alert for network traffic
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1376614 Sample: sail98760.scr.exe Startdate: 18/01/2024 Architecture: WINDOWS Score: 100 58 geoplugin.net 2->58 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Found malware configuration 2->64 66 19 other signatures 2->66 11 sail98760.scr.exe 6 2->11         started        15 wscript.exe 1 2->15         started        17 remcos.exe 2 2->17         started        19 2 other processes 2->19 signatures3 process4 file5 52 C:\Users\user\AppData\...\cacostomia.exe, PE32 11->52 dropped 88 Binary is likely a compiled AutoIt script file 11->88 21 cacostomia.exe 2 6 11->21         started        90 Windows Scripting host queries suspicious COM object (likely to drop second stage) 15->90 25 cacostomia.exe 2 15->25         started        signatures6 process7 file8 48 C:\ProgramData\Remcos\remcos.exe, PE32 21->48 dropped 50 C:\Users\user\AppData\...\cacostomia.vbs, data 21->50 dropped 72 Antivirus detection for dropped file 21->72 74 Contains functionality to bypass UAC (CMSTPLUA) 21->74 76 Binary is likely a compiled AutoIt script file 21->76 78 9 other signatures 21->78 27 remcos.exe 2 21->27         started        signatures9 process10 signatures11 80 Antivirus detection for dropped file 27->80 82 Binary is likely a compiled AutoIt script file 27->82 84 Machine Learning detection for dropped file 27->84 86 Found API chain indicative of sandbox detection 27->86 30 remcos.exe 2 3 27->30         started        process12 signatures13 92 Binary is likely a compiled AutoIt script file 30->92 94 Writes to foreign memory regions 30->94 96 Maps a DLL or memory area into another process 30->96 33 iexplore.exe 2 17 30->33         started        process14 dnsIp15 54 107.175.229.139, 49711, 49712, 8087 AS-COLOCROSSINGUS United States 33->54 56 geoplugin.net 178.237.33.50, 49713, 49714, 80 ATOM86-ASATOM86NL Netherlands 33->56 46 C:\ProgramData\Remcos\logs.dat, data 33->46 dropped 68 Binary is likely a compiled AutoIt script file 33->68 70 Maps a DLL or memory area into another process 33->70 38 iexplore.exe 2 33->38         started        40 iexplore.exe 1 33->40         started        42 iexplore.exe 1 33->42         started        44 iexplore.exe 33->44         started        file16 signatures17 process18
Threat name:
Win32.Trojan.Remcos
Status:
Malicious
First seen:
2024-01-18 06:51:20 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious use of WriteProcessMemory
AutoIT Executable
Drops startup file
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe 9056f6f0607b94a11f0e53f7c54c605e66479d0219ffb9e7a45f1c439da2dce6

(this sample)

  
Delivery method
Distributed via e-mail attachment

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