MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
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SHA256 hash: 37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f
SHA3-384 hash: ff2b50694f81222d26511d299a7bb39a76aa47ee489946ccf0d2b53222b72cbadf7f0e5f8604a7d5f23aa6a72170161d
SHA1 hash: 0d2a7c46954e4649c15fc4ace924fac538cdc2c7
MD5 hash: 651ecab38dc60be99e6a08244612050d
humanhash: mango-idaho-mountain-monkey
File name:651ecab38dc60be99e6a08244612050d.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'063'936 bytes
First seen:2024-11-12 06:41:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:3/HTkjpzw3cY2e8THhVECO6Cq0h/mxMZ/4A01/VvgQ0ory9DXCfdp3vmWWIC6cxB:vHYwMYzz8014dYNMWOreyBMZvmowm
TLSH T18F35DFC03A3A7B2ADEB957F18919DD7103B51968B415FAE65EDD77C73088B01AA08F03
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
420
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
651ecab38dc60be99e6a08244612050d.exe
Verdict:
Malicious activity
Analysis date:
2024-11-12 07:05:23 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/267a229c-2f08-4be4-9ff3-6b34f8e2972c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.29486.16978.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6732f8fbaf2d3dc89feedbf7
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6732f8bbd3a0cdb9d3274820/reports/232aebba-d367-4fd4-a501-7c58259e37c2/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3ecd289b-3528-470a-8249-fbfef15abf1e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1554178
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
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
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1554178 Sample: dyT8pWNPk7.exe Startdate: 12/11/2024 Architecture: WINDOWS Score: 100 85 geoplugin.net 2->85 101 Suricata IDS alerts for network traffic 2->101 103 Found malware configuration 2->103 105 Malicious sample detected (through community Yara rule) 2->105 107 13 other signatures 2->107 9 dyT8pWNPk7.exe 7 2->9         started        13 iwoBVOkb.exe 5 2->13         started        15 msedge.exe 2->15         started        signatures3 process4 file5 65 C:\Users\user\AppData\Roaming\iwoBVOkb.exe, PE32 9->65 dropped 67 C:\Users\...\iwoBVOkb.exe:Zone.Identifier, ASCII 9->67 dropped 69 C:\Users\user\AppData\Local\...\tmp78FC.tmp, XML 9->69 dropped 71 C:\Users\user\AppData\...\dyT8pWNPk7.exe.log, ASCII 9->71 dropped 115 Attempt to bypass Chrome Application-Bound Encryption 9->115 117 Tries to steal Mail credentials (via file registry) 9->117 119 Uses schtasks.exe or at.exe to add and modify task schedules 9->119 127 2 other signatures 9->127 17 dyT8pWNPk7.exe 3 26 9->17         started        21 powershell.exe 22 9->21         started        23 powershell.exe 23 9->23         started        25 schtasks.exe 1 9->25         started        121 Multi AV Scanner detection for dropped file 13->121 123 Contains functionality to bypass UAC (CMSTPLUA) 13->123 125 Contains functionalty to change the wallpaper 13->125 129 4 other signatures 13->129 27 iwoBVOkb.exe 13->27         started        29 schtasks.exe 13->29         started        31 iwoBVOkb.exe 13->31         started        33 msedge.exe 15->33         started        36 2 other processes 15->36 signatures6 process7 dnsIp8 73 87.120.125.229, 49728, 49735, 49741 UNACS-AS-BG8000BurgasBG Bulgaria 17->73 75 127.0.0.1 unknown unknown 17->75 77 geoplugin.net 178.237.33.50, 49747, 80 ATOM86-ASATOM86NL Netherlands 17->77 95 Detected Remcos RAT 17->95 97 Tries to harvest and steal browser information (history, passwords, etc) 17->97 38 dyT8pWNPk7.exe 17->38         started        41 dyT8pWNPk7.exe 17->41         started        43 dyT8pWNPk7.exe 17->43         started        55 5 other processes 17->55 99 Loading BitLocker PowerShell Module 21->99 45 conhost.exe 21->45         started        47 WmiPrvSE.exe 21->47         started        49 conhost.exe 23->49         started        51 conhost.exe 25->51         started        53 conhost.exe 29->53         started        79 23.218.232.182, 443, 49927 RAYA-ASEG United States 33->79 81 104.40.82.182, 443, 49946 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 33->81 83 17 other IPs or domains 33->83 63 C:\Users\user\AppData\Local\...\Cookies, SQLite 33->63 dropped file9 signatures10 process11 dnsIp12 109 Tries to steal Instant Messenger accounts or passwords 38->109 111 Tries to steal Mail credentials (via file / registry access) 38->111 113 Tries to harvest and steal browser information (history, passwords, etc) 41->113 87 192.168.2.9, 138, 443, 49674 unknown unknown 55->87 89 239.255.255.250 unknown Reserved 55->89 58 chrome.exe 55->58         started        61 msedge.exe 55->61         started        signatures13 process14 dnsIp15 91 googlehosted.l.googleusercontent.com 142.250.186.161, 443, 49806 GOOGLEUS United States 58->91 93 clients2.googleusercontent.com 58->93
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-11-08 12:33:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g52jyljegajhnknrvhi3hgvutqydpxm623y7sdujkzmklufnufxq._file
Verdict:
malicious
Label(s):
nirsoft
Create hunting rule
admintool_mailpassview
Create hunting rule
remcos
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehostescobar collection credential_access discovery execution rat spyware stealer
Link:
https://tria.ge/reports/241112-hgcyrawmbs/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Uses browser remote debugging
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
87.120.125.229:53215
goma.zapto.org:53215
127.0.0.1:53215
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7aa52fed-c2c9-44c5-8aca-56f52a113513
Unpacked files
SH256 hash:
24a41c721473700754ddffdafdba32d1b4a280f9da0a8eb05f5f878a5e46a39b
MD5 hash:
2d9acc5f28bb66348131166fb5a059e8
SHA1 hash:
724960f45e5abbbd538355b965b0a10ac85d00f6
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/be57a480-02b7-45c6-aa91-175127107392/
SH256 hash:
70b394df89323a32ec47d2b7ceaad97bff2e01d5fc8a9905f27bb7cc8612b5c6
MD5 hash:
57ad73af91cfa87d4a4e8ed525ec567e
SHA1 hash:
44efa2ec8427d94ef2a6ebe01398558478977b43
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/be57a480-02b7-45c6-aa91-175127107392/
SH256 hash:
1ff408dcf03a7c1d5996d770eda680af8e3fbb0a62731154fe6c5827e4651dfa
MD5 hash:
ffcb5a3c7d76cc668a580ab1d7192f7f
SHA1 hash:
09d2fc8a8fc0aa8c9544a5055fb73ae7207963f0
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/be57a480-02b7-45c6-aa91-175127107392/
SH256 hash:
37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f
MD5 hash:
651ecab38dc60be99e6a08244612050d
SHA1 hash:
0d2a7c46954e4649c15fc4ace924fac538cdc2c7
Link:
https://www.unpac.me/results/be57a480-02b7-45c6-aa91-175127107392/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37749c2d2430/report/overview.html
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/37749c2d24301276a9b1a9d1b39ab49c3037dd9ed6f1f90e895658a5d0ada16f

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

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

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