MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
SHA3-384 hash: 0e0bfc99e55481253908fc91221eed0d2c6a3479f844f7d97fa8a6e17feae179bb7815dab07cb9008fec8970eb8c436d
SHA1 hash: d72855f589884de376a425b498807b4ce0750efb
MD5 hash: 1de9c244e98fbb43dddda854d40470bc
humanhash: texas-lithium-queen-avocado
File name:1de9c244e98fbb43dddda854d40470bc.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'401'344 bytes
First seen:2020-09-25 09:58:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:LNyh2LlTAQuxQgWQuLlndwn1fZfx3LakwR2SEoqhR5IQODyZpSjB3ZV8/F6XI0:Cnfx3LrfoqhfIQODyZEBj
Threatray 770 similar samples on MalwareBazaar
TLSH 0155CE6B7380FD00D43A06F0AC54E7E182722F5C9725E57976E43E2B71E6ADA72903C6
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
office1.servemp3.com:2017 (194.5.97.147)

Pointing to nVpn:

% Information related to '194.5.97.0 - 194.5.97.255'

% Abuse contact for '194.5.97.0 - 194.5.97.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.97.0 - 194.5.97.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-UK5
country: GB

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/65775/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Running batch commands
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/474958
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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)
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: 289927 Sample: q16D63PqE7.exe Startdate: 25/09/2020 Architecture: WINDOWS Score: 100 65 office1.servemp3.com 2->65 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for dropped file 2->75 77 15 other signatures 2->77 11 q16D63PqE7.exe 7 2->11         started        15 chrom.exe 4 2->15         started        17 chrom.exe 3 2->17         started        signatures3 process4 file5 57 C:\Users\user\AppData\...\bYpvIVnbpgu.exe, PE32 11->57 dropped 59 C:\Users\...\bYpvIVnbpgu.exe:Zone.Identifier, ASCII 11->59 dropped 61 C:\Users\user\AppData\Local\...\tmp388C.tmp, XML 11->61 dropped 63 C:\Users\user\AppData\...\q16D63PqE7.exe.log, ASCII 11->63 dropped 87 Contains functionality to detect virtual machines (IN, VMware) 11->87 89 Contains functionality to steal Chrome passwords or cookies 11->89 91 Contains functionality to inject code into remote processes 11->91 93 Contains functionality to steal Firefox passwords or cookies 11->93 19 q16D63PqE7.exe 1 4 11->19         started        22 schtasks.exe 1 11->22         started        95 Injects a PE file into a foreign processes 15->95 24 schtasks.exe 15->24         started        26 chrom.exe 15->26         started        signatures6 process7 file8 53 C:\Users\user\AppData\Roaming\chrom.exe, PE32 19->53 dropped 55 C:\Users\user\...\chrom.exe:Zone.Identifier, ASCII 19->55 dropped 28 cmd.exe 1 19->28         started        31 conhost.exe 22->31         started        33 conhost.exe 24->33         started        process9 signatures10 97 Uses ping.exe to sleep 28->97 35 chrom.exe 4 28->35         started        38 PING.EXE 1 28->38         started        41 conhost.exe 28->41         started        process11 dnsIp12 79 Antivirus detection for dropped file 35->79 81 Multi AV Scanner detection for dropped file 35->81 83 Machine Learning detection for dropped file 35->83 85 Injects a PE file into a foreign processes 35->85 43 chrom.exe 1 1 35->43         started        47 schtasks.exe 1 35->47         started        49 chrom.exe 35->49         started        67 127.0.0.1 unknown unknown 38->67 signatures13 process14 dnsIp15 69 office1.servemp3.com 194.5.97.147, 2017, 49726, 49727 DANILENKODE Netherlands 43->69 99 Installs a global keyboard hook 43->99 51 conhost.exe 47->51         started        signatures16 process17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-09-22 06:24:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 29 (72.41%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l5heuq5admrv26a4ncebtcyyoucstxnj7rdso4tziaivbehanjwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
246fb765947ed62ef616f5f714642ff0db639983582c0fa2cbab9ad251669b78
RemcosRAT
5744db104260134735390f73f8db18a3283957d0d25971163ea45ae7654ffe53
RemcosRAT
916c72039c2b0952ffee4330d20b0dc43450639e3299ceea3c7165d23386a339
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a36c5afbe91c1e48ee0fff6a2a9f6c7840b9e89d529b40b1663cc442de5a346d
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ac5f9e2cef8603c2b588194055654468562c121c21ff39b8356f23ef9fb1c2c9
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b2bccd13743ac9153a8b731af82d6b19fa7395dd16596a3b5f783f1092419c3a
RemcosRAT
c86547820c5a26a0648360a46887fcf458733877baafca36feecb244c8e042ba
RemcosRAT
deaeae58f25c2af5579c5bd2dc276dcc346a6f022d359fc1e4d9e09ac2c1107f
RemcosRAT
e9405efd2e392e4732172009d420567b63b2ed3eb1ad51d9a0539eefaf620030
RemcosRAT
f57374520bfbf5f5afbbfe8c8cf762f95e05cf050fe959d731d49b77f4776cba
RemcosRAT
+ 760 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200925-4cgmypmegx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
office1.servemp3.com:2017
Unpacked files
SH256 hash:
5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
MD5 hash:
1de9c244e98fbb43dddda854d40470bc
SHA1 hash:
d72855f589884de376a425b498807b4ce0750efb
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
SH256 hash:
7dc7c9f2d9c7f37ff9c92017d731e7f4b3778bc04224d291521756acb6a761e7
MD5 hash:
4c9b501ceaaa400c58c92afa5ee1f34b
SHA1 hash:
39eb1fce731b9a708933a72db832e7a98c558409
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
SH256 hash:
04aee74823779bf339419fe194d5f269ca831622cc3c2929e7ed10684f07164a
MD5 hash:
5f5604646b3cc099ed14c958f8ef292f
SHA1 hash:
4087469669ac113b5e2b24c7fdcfb8a8ba2dd3a1
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
SH256 hash:
76485409cb017a48f703d8a73e92a807317d284627a4b87a795f284da27fdb28
MD5 hash:
22b288aa906b7b3388fbd89ab79f2ece
SHA1 hash:
5335cbda006c009b2d7ece5532557c3008c1e2d6
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
SH256 hash:
a76d36102ba09f7387977e7485045fe03f72f7a51b905a522894459ff22e477b
MD5 hash:
a537f6c3c0f16b4fdf26effd89dad3b2
SHA1 hash:
cf4951f7951e519e6b725aced9ad7291442b0e5d
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
SH256 hash:
1b006d3f7c35c269dd47db07681d47ac69f52a818aa7ac18d05f9cda4819b844
MD5 hash:
6f6e928f2dbcb39f2f66c2b48a1ba94e
SHA1 hash:
c305fe702734a53c471b544d30bc535da158d4d5
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/91db696d-140b-4440-99c9-ffa10b8e324b/
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/5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d

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 5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/65775/
  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download

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