MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90bd940eed30183ce45dcb4b50c1f521761e5229f8d6b315d2f18950b7b92d13. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90bd940eed30183ce45dcb4b50c1f521761e5229f8d6b315d2f18950b7b92d13
SHA3-384 hash: f4827e0f7c0df87b6b9dcee5f9144b6a7ec7076f0312dd805421b841e9ae29efbdb88bed90fc05ac43145077a6e5a3cc
SHA1 hash: e08c017f9194da43c2b377c5469cc07c35496fcc
MD5 hash: bf69775900e6b43105c2491bfde96440
humanhash: foxtrot-london-nine-skylark
File name:bf69775900e6b43105c2491bfde96440.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'424'896 bytes
First seen:2020-09-27 08:10:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:3x1ZZfx3L4kwo2npC+/Pb0bEoqJpSjB3ZV8/F6XI0:h5fx3Lanbz0QoqJEBj
Threatray 773 similar samples on MalwareBazaar
TLSH 7765CF6B7380BD40D43A05F09C94EBE182726F8C9724D53976E43D2BB5E5AEB72903C6
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/66230/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Running batch commands
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/476019
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 290459 Sample: yErvSmQ3KK.exe Startdate: 27/09/2020 Architecture: WINDOWS Score: 100 78 office1.servemp3.com 2->78 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for dropped file 2->84 86 Antivirus / Scanner detection for submitted sample 2->86 88 14 other signatures 2->88 11 yErvSmQ3KK.exe 7 2->11         started        15 chrom.exe 4 2->15         started        17 chrom.exe 2->17         started        signatures3 process4 file5 66 C:\Users\user\AppData\Roaming\wLVduNdU.exe, PE32 11->66 dropped 68 C:\Users\...\wLVduNdU.exe:Zone.Identifier, ASCII 11->68 dropped 70 C:\Users\user\AppData\Local\...\tmp53A9.tmp, XML 11->70 dropped 72 C:\Users\user\AppData\...\yErvSmQ3KK.exe.log, ASCII 11->72 dropped 94 Contains functionality to detect virtual machines (IN, VMware) 11->94 96 Contains functionality to steal Chrome passwords or cookies 11->96 98 Contains functionality to capture and log keystrokes 11->98 102 2 other signatures 11->102 19 yErvSmQ3KK.exe 1 4 11->19         started        22 schtasks.exe 1 11->22         started        100 Injects a PE file into a foreign processes 15->100 24 schtasks.exe 15->24         started        26 chrom.exe 15->26         started        28 chrom.exe 15->28         started        30 chrom.exe 15->30         started        32 schtasks.exe 17->32         started        34 chrom.exe 17->34         started        signatures6 process7 file8 62 C:\Users\user\AppData\Roaming\chrom.exe, PE32 19->62 dropped 64 C:\Users\user\...\chrom.exe:Zone.Identifier, ASCII 19->64 dropped 36 cmd.exe 1 19->36         started        39 conhost.exe 22->39         started        41 conhost.exe 24->41         started        43 conhost.exe 32->43         started        process9 signatures10 90 Uses ping.exe to sleep 36->90 45 chrom.exe 5 36->45         started        49 PING.EXE 1 36->49         started        52 conhost.exe 36->52         started        process11 dnsIp12 74 C:\Users\user\AppData\Local\...\chrom.exe.log, ASCII 45->74 dropped 104 Antivirus detection for dropped file 45->104 106 Multi AV Scanner detection for dropped file 45->106 108 Machine Learning detection for dropped file 45->108 110 4 other signatures 45->110 54 chrom.exe 1 1 45->54         started        58 schtasks.exe 1 45->58         started        76 127.0.0.1 unknown unknown 49->76 file13 signatures14 process15 dnsIp16 80 office1.servemp3.com 194.5.97.147, 2017, 49706, 49709 DANILENKODE Netherlands 54->80 92 Installs a global keyboard hook 54->92 60 conhost.exe 58->60         started        signatures17 process18
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/90bd940eed30183ce45dcb4b50c1f521761e5229f8d6b315d2f18950b7b92d13/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-21 17:44:37 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sc6zidxngamdzzc5znfvbqpvef3b4urj7dllgfos6gevbn5zfujq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
23735f88fafab80a318fe17447a9eaff8d898daf2f31108c0ab051e50ae16ef5
RemcosRAT
3f2c710a97bb42579ee2f9956437ff160a68bd787439fbc025ab3d6b46076d34
RemcosRAT
51358357df23c81216cfed7bb144fcf65b611e622a661fa9fd5beaea4d749bb3
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56fee643ba39ac908309688827397099ca6b707c45154eb14da1b693f6b16571
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753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3
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762d689595557fa3064907433659411b95132e554f7d17fcf62d1a77db51e3e5
RemcosRAT
81783c63ad44bdb77b3db79ec3cafb33222395e89d765c4ffbab36ea6b9c96eb
RemcosRAT
9160a75fe7bd27c3cb8141039d4c7383162b199454dfa285dd7d11f9fcfe52b1
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aad53b1b6e50e7ee426f0790b5497cb7d63704a6775248f258db1263762761bb
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c851749fd6c9fa19293d8ee2c5b45b3dc8561115ddfe7166fbaefcb9b353b7c4
RemcosRAT
+ 763 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200927-bvhncgp112/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
office1.servemp3.com:2017
Unpacked files
SH256 hash:
90bd940eed30183ce45dcb4b50c1f521761e5229f8d6b315d2f18950b7b92d13
MD5 hash:
bf69775900e6b43105c2491bfde96440
SHA1 hash:
e08c017f9194da43c2b377c5469cc07c35496fcc
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
SH256 hash:
e50447cef6d7417da9d03391c91bbde8bab10e2afde68c8068361342bc7f841c
MD5 hash:
8194bce273272c10d03c3427459d6a70
SHA1 hash:
215e258ef139b75fc32133b1483a863ee58a1b41
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
SH256 hash:
04aee74823779bf339419fe194d5f269ca831622cc3c2929e7ed10684f07164a
MD5 hash:
5f5604646b3cc099ed14c958f8ef292f
SHA1 hash:
4087469669ac113b5e2b24c7fdcfb8a8ba2dd3a1
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
SH256 hash:
76485409cb017a48f703d8a73e92a807317d284627a4b87a795f284da27fdb28
MD5 hash:
22b288aa906b7b3388fbd89ab79f2ece
SHA1 hash:
5335cbda006c009b2d7ece5532557c3008c1e2d6
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
SH256 hash:
206ba1558fa168a28f959e21f2035cf59419079c04f26bd29f8f01a0fad30675
MD5 hash:
177b270b7893a16894c115e80d8d52bf
SHA1 hash:
683f2e30adf7d491cef32ff74ba15331033f50e3
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
SH256 hash:
d6e75b67ea2a510300cbba3e14a2f4e9d3420295efcadf46512587cf5ff48e12
MD5 hash:
dd81e70fcfc13f383f87980bf7d01bc5
SHA1 hash:
1779a06476a76b478a790576cc470408eddcb026
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/694753bf-7b2c-4e23-8728-5eedcf10df84/
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:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
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

File information

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

Web download

RemcosRAT

Executable exe 90bd940eed30183ce45dcb4b50c1f521761e5229f8d6b315d2f18950b7b92d13

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/66230/
  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download

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