MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4
SHA3-384 hash: 07b1be0ddc8b20a0b72d3099c1cef175570fca3ca4142e198d11fa71d3e86171e9a58de7bb6f8d871e03bd0dd10ec9d5
SHA1 hash: 77bee4b3b07c367f45ea8ecd87eb65b317900fd9
MD5 hash: 7b80992176d91fe6ccb5301fb16e3e40
humanhash: mountain-queen-early-skylark
File name:SecuriteInfo.com.Trojan.GenericKD.45131634.12155.15985
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:587'640 bytes
First seen:2020-12-24 13:58:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:nsTC6rj7kxWfnUpcWcyCFKL+92Gh0xd87:MC6r8wPUOWy0L+v7
Threatray 1'298 similar samples on MalwareBazaar
TLSH 0AC4A50BBED2C5A0C5506876F3F8E5E52774EEDB12005767130A7AE6EE322CB350E196
Reporter SecuriteInfoCom
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'030
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan.GenericKD.45131634.12155.15985
Verdict:
Malicious activity
Analysis date:
2020-12-24 14:00:53 UTC
Tags:
rat remcos keylogger trojan
Link:
https://app.any.run/tasks/3344fad1-b05d-4068-a878-333c7fa36f7b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/109351/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45131634.12155.15985.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Launching a process
Sending a UDP request
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Verdict:
8
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/569744
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
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)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 333931 Sample: SecuriteInfo.com.Trojan.Gen... Startdate: 24/12/2020 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Detected Remcos RAT 2->63 65 3 other signatures 2->65 11 SecuriteInfo.com.Trojan.GenericKD.45131634.12155.exe 7 2->11         started        process3 file4 47 C:\Users\user\mgiy.exe, PE32 11->47 dropped 49 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 11->49 dropped 51 C:\Users\user\mgiy.exe:Zone.Identifier, ASCII 11->51 dropped 53 SecuriteInfo.com.T...31634.12155.exe.log, ASCII 11->53 dropped 75 Drops PE files to the user root directory 11->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->77 15 mgiy.exe 3 11->15         started        18 cmd.exe 1 11->18         started        signatures5 process6 signatures7 87 Multi AV Scanner detection for dropped file 15->87 89 Writes to foreign memory regions 15->89 91 Allocates memory in foreign processes 15->91 93 2 other signatures 15->93 20 AddInProcess32.exe 1 5 15->20         started        23 conhost.exe 18->23         started        25 reg.exe 1 1 18->25         started        process8 file9 43 C:\Users\user\AppData\...\FB_4C40.tmp.exe, PE32 20->43 dropped 45 C:\Users\user\AppData\...\FB_453A.tmp.exe, PE32 20->45 dropped 27 FB_4C40.tmp.exe 3 4 20->27         started        31 FB_453A.tmp.exe 20->31         started        process10 file11 55 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 27->55 dropped 79 Antivirus detection for dropped file 27->79 81 Contains functionalty to change the wallpaper 27->81 83 Machine Learning detection for dropped file 27->83 85 4 other signatures 27->85 33 wscript.exe 1 27->33         started        signatures12 process13 process14 35 cmd.exe 1 33->35         started        process15 37 remcos.exe 2 3 35->37         started        41 conhost.exe 35->41         started        dnsIp16 57 whatgodcannotdodoestnotexist.duckdns.org 79.134.225.92, 2889, 49735 FINK-TELECOM-SERVICESCH Switzerland 37->57 67 Antivirus detection for dropped file 37->67 69 Contains functionalty to change the wallpaper 37->69 71 Machine Learning detection for dropped file 37->71 73 3 other signatures 37->73 signatures17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-12-23 20:21:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqnb2dku7roq7lhrylba2hfvj5qhaxlhwwmqwo7dz7fx5dasngsa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
232e0519807d6bd5adad7c4617644803d6e3b3524595dfd80d5eadcc001c99f1
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
RemcosRAT
9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'288 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201224-w45k8fvdfa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
whatgodcannotdodoestnotexist.duckdns.org:2889
Unpacked files
SH256 hash:
641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4
MD5 hash:
7b80992176d91fe6ccb5301fb16e3e40
SHA1 hash:
77bee4b3b07c367f45ea8ecd87eb65b317900fd9
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
SH256 hash:
49dc26861fffee2f6440e56a10b7086ea305d2f16bb9e27ba3e08b9893557f86
MD5 hash:
e732cd6decfed3503b4020899d5a56f9
SHA1 hash:
024c1bf147c698e92aae340bbee323601d02a787
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
SH256 hash:
c582fdef851517db1f4d39a4bdfd00d9ffcf44879208a68190c958d95303fb14
MD5 hash:
55fd3940025ee9d90ee1c6cc5796d700
SHA1 hash:
68a03f7d57385ee0d2c0fcf663626d8a6ec3ca78
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
SH256 hash:
8c1e3481810bb7479e777a08969828c8d68ab73ea629026fc2e490c51f6e950e
MD5 hash:
7d6e5c79b45e0fba39a39cd9a527170c
SHA1 hash:
bbb55e8fee57adef35682d42bcd4912a9882f8ae
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
SH256 hash:
14c96db2e343973ffd0ff0a17d946f7a6c2027f5e2761f428c67aa994ecc8f7c
MD5 hash:
626ab892c47d6801ffe3a588ea1b068c
SHA1 hash:
f18101705f5d93b642b80cdf9ad764b98eef1bce
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/335a5561-2c86-4efa-8269-350a098be453/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4

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
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_remcos_g0
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information

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

Web download

RemcosRAT

Executable exe 641a1d0d54fc5d0facf1c2c20d1cb54f60705d67b5990b3be3cfcb7e8c1269a4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/941503/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/109351/

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