MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0. 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: 9


Intelligence 9 IOCs 1 YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0
SHA3-384 hash: 119a569c40626972d9969bfaaf0af849169a09711f630c418606c0dad1c289e1f5292baaa079b81ebb92dafd33be182d
SHA1 hash: 4ed7435378524fb805c603b2b796fcc561d61911
MD5 hash: d98d1ac86525405d02b9c39f0b82b383
humanhash: tennis-summer-xray-whiskey
File name:G9876545678009876.XZ
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:697'776 bytes
First seen:2023-12-08 09:32:48 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:jHvwZlKw22IArleQg6N5xdyUAe8tglyO/nHR1GyZGxZgDbtvOKSDWf:LqKs5DL/r3xAyZ+QOKn
TLSH T1B9E423D0EA7A70FC91BEC5E7A1EBA757BD99C48D86046D00FF5A88F027750CC66CA112
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:QUOTATION RemcosRAT xz zip


Avatar
cocaman
Malicious email (T1566.001)
From: "comercial.rspharma@gmail.com" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [45.137.22.114]) "
Date: "8 Dec 2023 07:06:42 +0100"
Subject: "Quotation"
Attachment: "G9876545678009876.XZ"

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
107.175.229.139:8087 https://threatfox.abuse.ch/ioc/1199401/

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:G9876545678009876.BAT
File size:775'680 bytes
SHA256 hash: 2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744
MD5 hash: 6696d37cf0b9b65fd9fc58934d79c9cb
MIME type:application/x-dosexec
Signature RemcosRAT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.23971.32281.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/6572e2cf3636548f3742adc2/reports/1738ed5e-8d0a-4c03-b36a-f02c48b1fa1b/overview
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
100%
Verdict:
Malware
File Type:
Archive
Link:
https://malprob.io/report/73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-12-08 04:07:57 UTC
File Type:
Binary (Archive)
Extracted files:
5
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=opgrskq6ekj74vabnh5b2a3hngnqbjvaaxm2se5eruhpmxgkmtia._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Link:
https://tria.ge/reports/231208-lq3gjsad76/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8087
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0

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:BLOWFISH_Constants
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

zip 73cd192a1e2293fe540169fa1d0367699b00a6a005d9a913a48d0ef65cca64d0

(this sample)

RemcosRAT

Executable exe 2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744
  
Dropping
RemcosRAT

Comments