MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed
SHA3-384 hash: f27dcd8e755c82c779c637d3dd00941e2c9a09edb6648f71f1e38bbfd39ad4fa5f6ae638acc258ad412a70283ccabbb3
SHA1 hash: 3f4f3ca2e1629980c19fae4279425b737fd1c3e8
MD5 hash: 0b4fcb90d5cfffa94758911b431b46c1
humanhash: idaho-indigo-may-echo
File name:0b4fcb90d5cfffa94758911b431b46c1.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'125'376 bytes
First seen:2022-07-13 07:21:20 UTC
Last seen:2022-07-22 10:29:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:Paq/ynI7TkGyAYxewNo5aG+bA2oNzTQMOyhxhkTaWKpwB6ipKn8rqG11/Hm:ZLktz9Ne92q3QM7tiaWKtiY8eGT
Threatray 1'451 similar samples on MalwareBazaar
TLSH T16935D02F3FDE4890C5BD7B3592A594E143F0D1CB196ADB1944C2F2E0AF2331A5EA50DA
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e48486828294f400 (1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
5
# of downloads :
272
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
0b4fcb90d5cfffa94758911b431b46c1.exe
Verdict:
Malicious activity
Analysis date:
2022-07-13 07:24:47 UTC
Tags:
rat remcos keylogger stealer
Link:
https://app.any.run/tasks/10164f40-606d-4574-89c4-ae5538bb5742

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/286830/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1444.17937.12377.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Launching a process
Creating a file
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62ce72b18dab2096b992d64c/reports/931d5809-05bf-4d79-aac1-554c4270b1bc/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/69f375b6-09a9-4289-8f48-f8e2edee6ac5
Result
Threat name:
AgentTesla, Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1029946
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Drops executables to the windows directory (C:\Windows) and starts them
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 662440 Sample: 5XDsellLdh.exe Startdate: 13/07/2022 Architecture: WINDOWS Score: 100 36 ptbci.co.id 2->36 38 mail.ptbci.co.id 2->38 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 7 other signatures 2->62 9 5XDsellLdh.exe 15 3 2->9         started        signatures3 process4 dnsIp5 42 www.google.com 172.217.16.196, 443, 49694, 49703 GOOGLEUS United States 9->42 32 C:\Users\user\AppData\...\5XDsellLdh.exe.log, ASCII 9->32 dropped 76 Writes to foreign memory regions 9->76 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->78 80 Injects a PE file into a foreign processes 9->80 14 AddInProcess32.exe 2 17 9->14         started        file6 signatures7 process8 dnsIp9 44 80.66.64.151, 49699, 49700, 49701 VAD-SRL-AS1MD Russian Federation 14->44 46 geoplugin.net 178.237.33.50, 49702, 80 ATOM86-ASATOM86NL Netherlands 14->46 34 C:\Windows\Microsoft.NET\...\dwn.exe, PE32 14->34 dropped 48 Contains functionality to steal Chrome passwords or cookies 14->48 50 Drops executables to the windows directory (C:\Windows) and starts them 14->50 52 Contains functionality to inject code into remote processes 14->52 54 4 other signatures 14->54 19 dwn.exe 14 3 14->19         started        23 AddInProcess32.exe 1 14->23         started        25 AddInProcess32.exe 14->25         started        27 AddInProcess32.exe 14->27         started        file10 signatures11 process12 dnsIp13 40 www.google.com 19->40 64 Machine Learning detection for dropped file 19->64 66 Writes to foreign memory regions 19->66 68 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->68 70 Injects a PE file into a foreign processes 19->70 29 InstallUtil.exe 2 19->29         started        72 Tries to steal Instant Messenger accounts or passwords 23->72 74 Tries to steal Mail credentials (via file / registry access) 23->74 signatures14 process15 signatures16 82 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->82 84 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 29->84 86 Tries to steal Mail credentials (via file / registry access) 29->86 88 3 other signatures 29->88
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-07-12 23:13:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
93
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gpz4scpxmef7zpfxnljtpkzvp7x2rbd64h6ydj2kq4w5pwsiohwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
21323faa5f74ccc103e64f30bc31b36e0cfc971a601b59502713151ad4f465db
RemcosRAT
5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c
RemcosRAT
62671da23d0acb718d487ed7e7ad280f615915d3551e0a65b0ac82966a6610d9
RemcosRAT
7484e671f44dff5800c656985f8dc0540913622989a3d799bd012cb9dfb23762
RemcosRAT
91dfebe2d0d1f9ac3e495529066a6cd987ad302d33be7fb7fc744f5905daf832
RemcosRAT
b6d46263696ceeab50c8a9088bf3cedecad1bf4f8d8f452c1b1773f877d8e4a0
RemcosRAT
b7deac676ee163bb88faedd6e4a460b1fd0a0154823a4dfcda9b4804e05a4ba8
RemcosRAT
ba02bac73b14833463ceaa2380d5b040be444ccd53bd01e33ee4a442f8219ffc
RemcosRAT
db8a8a4bf1e1e63ef1bd27f8131dfeb14bca74e9d68605cf71e9eac5126baa48
RemcosRAT
+ 1'441 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:remcos botnet:remotehost collection keylogger rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220713-h683gseee3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Loads dropped DLL
Executes dropped EXE
NirSoft WebBrowserPassView
Nirsoft
AgentTesla
Remcos
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Malware Config
C2 Extraction:
80.66.64.151:7070
Unpacked files
SH256 hash:
33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed
MD5 hash:
0b4fcb90d5cfffa94758911b431b46c1
SHA1 hash:
3f4f3ca2e1629980c19fae4279425b737fd1c3e8
Link:
https://www.unpac.me/results/adba73bd-a740-47bf-87ad-ac47b62ab95a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/33f3c909f761/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Web download

RemcosRAT

Executable exe 33f3c909f7610bfcbcb76ad337ab357fefa8847ee1fd81a74a872dd7da4871ed

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2256897/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/286830/

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