MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments 1
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SHA256 hash: f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
SHA3-384 hash: 4b4c1318ee0253738d23bf1c9b226f31d5b7a1dfd18730e5d10d1e2dddf2cc1bea24e6ff2f0c3af4105b689dddc2e410
SHA1 hash: baa7611e5945ac6eff3038b1b2b0411a4aeb9c2d
MD5 hash: 6c495bef7c3b6622ff56e49822dc6796
humanhash: yankee-maine-maine-early
File name:6c495bef7c3b6622ff56e49822dc6796
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:825'856 bytes
First seen:2024-06-01 04:31:37 UTC
Last seen:2024-06-03 13:10:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep 12288:hYV6MorX7qzuC3QHO9FQVHPF51jgcratzbol4BP72dF3oVc6k0V80tx8lZb7yeCU:2BXu9HGaVHMboEUF3rVXa8Lb7yzU
TLSH T1DB0523C30792E8BAC5A51375C97BDC9098217832DDD13B6A8397F61FB034756E8A3A07
TrID 31.3% (.EXE) UPX compressed Win32 Executable (27066/9/6)
30.7% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
12.1% (.EXE) Win64 Executable (generic) (10523/12/4)
7.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe RemcosRAT UPX

Intelligence

File Origin
# of uploads :
3
# of downloads :
382
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972.exe
Verdict:
Malicious activity
Analysis date:
2024-06-01 04:33:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9030bc6f-fe65-4e38-b6cd-b69fca80852c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1390.28201.20467.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665b1a4b2188817e5eb6d271win7simulatehigh_evasion
Tags:
Shellcodecrypter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fc419327-84b4-4b7e-8d47-0f13ae76ddd2
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1450337
Signature
AI detected suspicious 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 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
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
Installs a global keyboard hook
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 submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1450337 Sample: O63hjETll5.exe Startdate: 01/06/2024 Architecture: WINDOWS Score: 100 41 yuahdgbceja.sytes.net 2->41 43 geoplugin.net 2->43 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 10 other signatures 2->65 10 O63hjETll5.exe 6 2->10         started        14 wscript.exe 1 2->14         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\maneuverability.exe, PE32 10->39 dropped 85 Binary is likely a compiled AutoIt script file 10->85 16 maneuverability.exe 3 10->16         started        87 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->87 20 maneuverability.exe 2 14->20         started        signatures6 process7 file8 37 C:\Users\user\AppData\...\maneuverability.vbs, data 16->37 dropped 49 Antivirus detection for dropped file 16->49 51 Binary is likely a compiled AutoIt script file 16->51 53 Drops VBS files to the startup folder 16->53 22 svchost.exe 16->22         started        25 maneuverability.exe 2 16->25         started        55 Writes to foreign memory regions 20->55 57 Maps a DLL or memory area into another process 20->57 27 svchost.exe 13 20->27         started        signatures9 process10 signatures11 67 Contains functionality to bypass UAC (CMSTPLUA) 22->67 69 Contains functionalty to change the wallpaper 22->69 71 Contains functionality to steal Chrome passwords or cookies 22->71 83 3 other signatures 22->83 73 Binary is likely a compiled AutoIt script file 25->73 75 Writes to foreign memory regions 25->75 77 Maps a DLL or memory area into another process 25->77 29 svchost.exe 3 7 25->29         started        79 Detected Remcos RAT 27->79 81 Installs a global keyboard hook 27->81 process12 dnsIp13 45 yuahdgbceja.sytes.net 23.94.53.100, 2766, 49724, 49727 AS-COLOCROSSINGUS United States 29->45 47 geoplugin.net 178.237.33.50, 49728, 49731, 80 ATOM86-ASATOM86NL Netherlands 29->47 89 Detected Remcos RAT 29->89 91 Installs a global keyboard hook 29->91 33 WerFault.exe 2 16 29->33         started        35 WerFault.exe 23 16 29->35         started        signatures14 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972/
Threat name:
Win32.Trojan.AutoItInject
Create hunting rule
Status:
Malicious
First seen:
2024-05-31 21:33:20 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6qefwqaubicqbml3nmnsa2mk7ddiuclo2bzckli6mxiffbtsjfza._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
upx
Link:
https://tria.ge/reports/240601-e5yctaaa6t/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
AutoIT Executable
UPX packed file
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0f676cee-0438-4611-8c53-c848cd9f3b83
Unpacked files
SH256 hash:
9e76d13333fabc621c631a25eb1ece15caa91fb49b7742d78b126ad1c37e375c
MD5 hash:
8cc659b5281abda8e2a6db826f7d8aef
SHA1 hash:
cd1b7e7932af9d58ea191791309d57ca194d4ecd
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/cab27de9-8a08-435f-b4b7-a9f99ae98a77/
SH256 hash:
ac322cd8a5b18bb75258035882bc66accea1fe4c98b13b2df45e4f07610de871
MD5 hash:
78d7ca6c1996a6f4da4826543bcb306f
SHA1 hash:
78e0e3d4c5ce8dac74519949e356eec800fd8041
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/cab27de9-8a08-435f-b4b7-a9f99ae98a77/
Parent samples :
e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
82de9f7f6798a591fdeef48813ceb8298cdc5487989b6963439f43748a78442d
SH256 hash:
f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
MD5 hash:
6c495bef7c3b6622ff56e49822dc6796
SHA1 hash:
baa7611e5945ac6eff3038b1b2b0411a4aeb9c2d
Detections:
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/cab27de9-8a08-435f-b4b7-a9f99ae98a77/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972

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
Create hunting rule
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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
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
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu

File information

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

Web download

RemcosRAT

Executable exe f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2870835/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetUseConnectionW

Comments


Avatar
zbet commented on 2024-06-01 04:31:38 UTC

url : hxxp://192.3.83.115/AAQ.exe