MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f73e8d1f28812d763bbe7854b60a34b6b86b997944135480862304e9893830dc. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: f73e8d1f28812d763bbe7854b60a34b6b86b997944135480862304e9893830dc
SHA3-384 hash: d7924a36c8de3a049f0553aa483f0874c2c725606ee788ca8e886d0ae75a2326af10db8b2d9b9754756d22d602299db5
SHA1 hash: 8c9b64213e2e7e50ec56cee8743b198002cda1e6
MD5 hash: 9cf4dc8451eabc49ed410d99688ee0c2
humanhash: oven-nebraska-pizza-beryllium
File name:HG098760000.scr
Download: download sample
Signature RemcosRAT
File size:1'514'496 bytes
First seen:2024-02-09 15:42:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:9AHnh+eWsN3skA4RV1Hom2KXMmHa068T2QpZ9wqLvKmK2JRbNjX51LseJT5:ch+ZkldoPK8Ya068tnKDShwS
Threatray 185 similar samples on MalwareBazaar
TLSH T15B65BEB3639990F1FFA6A1736B16AD26477C7CAC10E3841E12DC197AE87406257FD223
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon b474e4d4dcccc4d0 (2 x AgentTesla, 2 x RemcosRAT)
Reporter abuse_ch
Tags:exe RemcosRAT scr

Intelligence


File Origin
# of uploads :
1
# of downloads :
311
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit fingerprint keylogger lolbin masquerade packed remcos shell32
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.
Result
Threat name:
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
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
Delayed program exit found
Drops VBS files to the startup folder
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: WScript or CScript Dropper
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
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: 1389874 Sample: HG098760000.scr.exe Startdate: 09/02/2024 Architecture: WINDOWS Score: 100 36 geoplugin.net 2->36 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 11 other signatures 2->56 8 HG098760000.scr.exe 6 2->8         started        12 wscript.exe 1 2->12         started        signatures3 process4 file5 30 C:\Users\user\...\porcelainization.exe, PE32 8->30 dropped 66 Binary is likely a compiled AutoIt script file 8->66 14 porcelainization.exe 3 18 8->14         started        68 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->68 19 porcelainization.exe 2 12->19         started        signatures6 process7 dnsIp8 38 107.175.229.139, 49707, 49708, 8087 AS-COLOCROSSINGUS United States 14->38 40 geoplugin.net 178.237.33.50, 49709, 80 ATOM86-ASATOM86NL Netherlands 14->40 32 C:\Users\user\AppData\Roaming\aka\yes.png, data 14->32 dropped 34 C:\Users\user\...\porcelainization.vbs, data 14->34 dropped 42 Contains functionality to bypass UAC (CMSTPLUA) 14->42 44 Tries to steal Mail credentials (via file registry) 14->44 46 Binary is likely a compiled AutoIt script file 14->46 48 9 other signatures 14->48 21 porcelainization.exe 1 14->21         started        24 porcelainization.exe 1 14->24         started        26 porcelainization.exe 2 14->26         started        28 porcelainization.exe 14->28         started        file9 signatures10 process11 signatures12 58 Binary is likely a compiled AutoIt script file 21->58 60 Tries to steal Instant Messenger accounts or passwords 21->60 62 Tries to steal Mail credentials (via file / registry access) 21->62 64 Tries to harvest and steal browser information (history, passwords, etc) 24->64
Threat name:
Win32.Trojan.Nymeria
Status:
Malicious
First seen:
2024-01-30 04:30:30 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Unpacked files
SH256 hash:
6edc7cb5271655eb893ef15120eff10cc6cc139512a0c242f91b90fba27076af
MD5 hash:
fb706c71306d377d489c6f7f4e4e3232
SHA1 hash:
52864807a001f968c7d7ce929d70793bf86bc6aa
Detections:
Remcos win_remcos_w0 win_remcos_auto malware_windows_remcos_rat INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
SH256 hash:
f73e8d1f28812d763bbe7854b60a34b6b86b997944135480862304e9893830dc
MD5 hash:
9cf4dc8451eabc49ed410d99688ee0c2
SHA1 hash:
8c9b64213e2e7e50ec56cee8743b198002cda1e6
Detections:
AutoIT_Compiled SUSP_Imphash_Mar23_3
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:SUSP_Imphash_Mar23_3
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research

File information


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

Malspam

RemcosRAT

Executable exe f73e8d1f28812d763bbe7854b60a34b6b86b997944135480862304e9893830dc

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments