MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85c6f9cc1d92580088ac090c6eeaba9169aa57290ee6568ef5278fc9170d11dc. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: 85c6f9cc1d92580088ac090c6eeaba9169aa57290ee6568ef5278fc9170d11dc
SHA3-384 hash: 98456bf0535f91d827f31455dd50cf73be6fbac6c4c8bf9d4bc7b7e2ef5f57a0093a0652d4a9638664caf87ed67891bd
SHA1 hash: 8dd1e185249be7ae7e6ab546bf4c06b59f030d4c
MD5 hash: fb465f2b05a6fdc86eb711d7e28e7010
humanhash: october-missouri-mississippi-fifteen
File name:UK COVID UPDATES AND ENTITLEMENT.exe
Download: download sample
Signature RemcosRAT
File size:611'328 bytes
First seen:2021-09-13 04:28:49 UTC
Last seen:2021-09-14 06:36:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:KMcb5BsC6IC367QnNp4e46+xd2sFHOAgDP:lQCeQN7Z+f2sFuAg
Threatray 2'342 similar samples on MalwareBazaar
TLSH T17DD4016A76949F69C58C19FAC1E3853403E3A68376B7C3453E8447CF2E427A5CE8A3C5
dhash icon c884e2f074bc5e06 (2 x AgentTesla, 1 x RemcosRAT, 1 x Floxif)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UK COVID UPDATES AND ENTITLEMENT.exe
Verdict:
Malicious activity
Analysis date:
2021-09-13 04:31:02 UTC
Tags:
covid19 trojan rat remcos evasion snakekeylogger keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Threat name:
Remcos Matiex
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Capture Wi-Fi password
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected Beds Obfuscator
Yara detected Matiex Keylogger
Yara detected Remcos RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 481891 Sample: UK COVID UPDATES AND ENTITL... Startdate: 13/09/2021 Architecture: WINDOWS Score: 100 44 youtube-ui.l.google.com 2->44 46 www.youtube.com 2->46 48 www.google.com 2->48 66 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->66 68 Multi AV Scanner detection for domain / URL 2->68 70 Found malware configuration 2->70 72 20 other signatures 2->72 10 UK COVID UPDATES AND ENTITLEMENT.exe 6 2->10         started        signatures3 process4 file5 36 C:\...\UK COVID UPDATES AND ENTITLEMENT.exe, PE32 10->36 dropped 38 UK COVID UPDATES A...exe:Zone.Identifier, ASCII 10->38 dropped 40 UK COVID UPDATES AND ENTITLEMENT.exe.log, ASCII 10->40 dropped 82 Writes to foreign memory regions 10->82 84 Injects a PE file into a foreign processes 10->84 14 UK COVID UPDATES AND ENTITLEMENT.exe 1 3 10->14         started        18 powershell.exe 18 10->18         started        20 UK COVID UPDATES AND ENTITLEMENT.exe 10->20         started        22 5 other processes 10->22 signatures6 process7 dnsIp8 58 tobi12345.hopto.org 91.193.75.202, 40401, 49777 DAVID_CRAIGGG Serbia 14->58 42 C:\Users\user\AppData\Local\Temp\dwnl.exe, PE32 14->42 dropped 24 dwnl.exe 15 5 14->24         started        28 WerFault.exe 14->28         started        60 youtube-ui.l.google.com 18->60 62 www.youtube.com 18->62 64 www.google.com 18->64 30 conhost.exe 18->30         started        file9 process10 dnsIp11 50 checkip.dyndns.org 24->50 52 api.telegram.org 149.154.167.220, 443, 49788, 49789 TELEGRAMRU United Kingdom 24->52 56 2 other IPs or domains 24->56 74 Antivirus detection for dropped file 24->74 76 May check the online IP address of the machine 24->76 78 Tries to steal Mail credentials (via file access) 24->78 80 5 other signatures 24->80 32 netsh.exe 24->32         started        54 192.168.2.1 unknown unknown 28->54 signatures12 process13 process14 34 conhost.exe 32->34         started       
Threat name:
ByteCode-MSIL.Trojan.Sabsik
Status:
Malicious
First seen:
2021-09-13 00:57:17 UTC
AV detection:
7 of 45 (15.56%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:matiex family:remcos botnet:ukleads keylogger rat spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
Matiex
Matiex Main Payload
Remcos
Malware Config
C2 Extraction:
tobi12345.hopto.org:40401
https://api.telegram.org/bot1709631362:AAFYoVMQZpimi2iPHwdKoK17kT4Nb88GHhM/sendMessage?chat_id=1120598411
Unpacked files
SH256 hash:
f596e94916ce0a0aceb0d1f75fb6e48d8ba1bf4c9cca3a7ff0759fee4ddb60a1
MD5 hash:
99577c474ea62d1f19043430478e0215
SHA1 hash:
25ce857ebdbe7762d2137568533543be43fa0f33
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
ccf48219a461a25a0fd149a7172b227f74ca2379ed0bec98d314d84819e5dcbb
MD5 hash:
a69320306e1c27cf081cf3f8de5ad638
SHA1 hash:
1fc2330dc1c02104bdf20d3af4a5752556d9a1bc
SH256 hash:
4300373df4f6d014cfc465eaca96c169348b712b1b971ed675fc907fa1814b16
MD5 hash:
8806e6f171625ab863a127992cac23e2
SHA1 hash:
08b67f83c0285f0dfef5dfd1e5154183e8124975
SH256 hash:
aea29acc581d4be105cca3b2477092f8cf1066b69bf5d630d180b21a8bae05d6
MD5 hash:
b2a102057f9a2dc7da4c0361ccbc2bca
SHA1 hash:
007e8d9df5ecf16ad2704c99f41dc85fff269052
Detections:
win_karkoff_auto
SH256 hash:
85c6f9cc1d92580088ac090c6eeaba9169aa57290ee6568ef5278fc9170d11dc
MD5 hash:
fb465f2b05a6fdc86eb711d7e28e7010
SHA1 hash:
8dd1e185249be7ae7e6ab546bf4c06b59f030d4c
Malware family:
Verdict:
Malicious
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:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

RemcosRAT

Executable exe 85c6f9cc1d92580088ac090c6eeaba9169aa57290ee6568ef5278fc9170d11dc

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment

Comments