MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3745a056d8f798d0b84a3b1cbaf5858f38f1f7cc3198d66a95e65c18302fba03. 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 YARA 8 File information Comments

SHA256 hash: 3745a056d8f798d0b84a3b1cbaf5858f38f1f7cc3198d66a95e65c18302fba03
SHA3-384 hash: 40ccbc7e61a32b1c1cd3227763584638a95b0ea94a66b41b0633c55db0f80926a5ccec910a752b4074f9c74166d730cd
SHA1 hash: 76c8db0d4e158d6f20ded1839cf760a62a278d9e
MD5 hash: 1d3282ec80aa3c766618c54cbbde8d19
humanhash: twenty-mockingbird-uniform-monkey
File name:1d3282ec80aa3c766618c54cbbde8d19.exe
Download: download sample
Signature RemcosRAT
File size:632'832 bytes
First seen:2020-11-15 08:26:39 UTC
Last seen:2020-11-15 09:40:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:HIg3+R3JqU/JwEmcY47VzFQbCudxnh8jkIyaIzrMBgkS9UOIK:og3y3gURwEmcr7rQb19WyamMCkSuOIK
Threatray 1'097 similar samples on MalwareBazaar
TLSH 68D4D0CD32AB04DFCAA605B47817C12D8B33DDA5E147E7561872A6AEF2A237717900D3
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
zednet.mooo.com:61600 (213.248.112.7)

Intelligence


File Origin
# of uploads :
2
# of downloads :
193
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Launching a process
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
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.
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Detected Remcos RAT
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 317056 Sample: ERxqLaH5tp.exe Startdate: 15/11/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Detected Remcos RAT 2->38 40 3 other signatures 2->40 6 ERxqLaH5tp.exe 1 3 2->6         started        10 chromenotify.exe 1 2->10         started        12 chromenotify.exe 2->12         started        process3 file4 24 C:\Users\user\chromenotify.exe, PE32 6->24 dropped 26 C:\Users\...\chromenotify.exe:Zone.Identifier, ASCII 6->26 dropped 28 C:\Users\user\AppData\...RxqLaH5tp.exe.log, ASCII 6->28 dropped 42 Drops PE files to the user root directory 6->42 44 Writes to foreign memory regions 6->44 46 Maps a DLL or memory area into another process 6->46 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 6->48 14 RegAsm.exe 2 6->14         started        50 Multi AV Scanner detection for dropped file 10->50 52 Machine Learning detection for dropped file 10->52 18 RegAsm.exe 10->18         started        20 RegAsm.exe 10->20         started        22 RegAsm.exe 12->22         started        signatures5 process6 dnsIp7 30 zednet.mooo.com 213.248.112.7, 61600 TELIANETTeliaCarrierEU European Union 14->30 32 192.168.2.1 unknown unknown 14->32 54 Contains functionalty to change the wallpaper 14->54 56 Contains functionality to steal Chrome passwords or cookies 14->56 58 Contains functionality to capture and log keystrokes 14->58 60 2 other signatures 14->60 signatures8
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-15 08:27:04 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
zednet.mooo.com:61600
Unpacked files
SH256 hash:
3745a056d8f798d0b84a3b1cbaf5858f38f1f7cc3198d66a95e65c18302fba03
MD5 hash:
1d3282ec80aa3c766618c54cbbde8d19
SHA1 hash:
76c8db0d4e158d6f20ded1839cf760a62a278d9e
SH256 hash:
b2547a505eb0de754dee475e4e9a80782510e159670319d0adebf4a986945289
MD5 hash:
8814de9129a021b908422914cfa8d75e
SHA1 hash:
28f4b474465d447b2af1885359a4bde9f278569d
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
da5d5dd1b14ce22c80561d4b622323695a9a03e8d90f43027991e900a3227158
MD5 hash:
2a8ea65ac1b420ceb1e4ca1c9732853e
SHA1 hash:
81e7b03d7f835efe2e7123667a4b9f8566a28e52
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:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

Web download

RemcosRAT

Executable exe 3745a056d8f798d0b84a3b1cbaf5858f38f1f7cc3198d66a95e65c18302fba03

(this sample)

  
Delivery method
Distributed via web download

Comments