MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102. 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: 14


Intelligence 14 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102
SHA3-384 hash: 02422035b529acbe6e2f0c855262dc831f9838da7ca32bb838af9e9b87f0c35b1b99abc65b72c33607991291d9b595b9
SHA1 hash: 4391431a67f15394062da9659f5e70c32569df33
MD5 hash: 17bce5a3e92767783947afca5db665c3
humanhash: beer-jersey-india-double
File name:17bce5a3e92767783947afca5db665c3.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:94'208 bytes
First seen:2021-08-03 15:36:37 UTC
Last seen:2021-08-04 13:07:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d3a62971944197f0701c7049a9c739d1 (60 x RemcosRAT)
ssdeep 1536:1hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP6vrv:LhzYTGWVvJ8f2v1TbPzuMsIFSHNThy+s
Threatray 1'913 similar samples on MalwareBazaar
TLSH T1E793D813FA4AD0B2E46591F146426F32CEBCBC3636492173D38FCA419D79892D416EBE
dhash icon 989894b49c9494f0 (43 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
194.5.98.210:50501

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
194.5.98.210:50501 https://threatfox.abuse.ch/ioc/165606/

Intelligence

File Origin
# of uploads :
3
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
17bce5a3e92767783947afca5db665c3.exe
Verdict:
Malicious activity
Analysis date:
2021-08-03 15:40:00 UTC
Tags:
trojan rat remcos
Link:
https://app.any.run/tasks/2c99cbb1-d8a1-4f14-b7f3-cad4af7d379f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/176116/
Detection(s):
Win.Malware.Azden-7587127-0
Create hunting rule

Win.Trojan.Remcos-9753190-0
Create hunting rule

Win.Malware.Rescoms-6598304-0
Create hunting rule

Win.Malware.Zusy-6832224-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Connection attempt
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2143984f-fb6c-4e18-b78b-0e820a102522
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/826323
Signature
Antivirus / Scanner detection for submitted sample
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
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
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
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 458756 Sample: jiYTQKf5gO.exe Startdate: 03/08/2021 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 9 other signatures 2->62 8 jiYTQKf5gO.exe 2 5 2->8         started        12 win32.exe 2 2->12         started        15 win32.exe 2->15         started        17 win32.exe 2->17         started        process3 dnsIp4 42 C:\Users\user\AppData\Roaming\...\win32.exe, PE32 8->42 dropped 44 C:\Users\user\...\win32.exe:Zone.Identifier, ASCII 8->44 dropped 68 Contains functionality to detect virtual machines (IN, VMware) 8->68 70 Contains functionality to steal Chrome passwords or cookies 8->70 72 Contains functionality to capture and log keystrokes 8->72 76 2 other signatures 8->76 19 cmd.exe 1 8->19         started        54 tobi12345.hopto.org 12->54 74 Installs a global keyboard hook 12->74 22 WerFault.exe 2 9 12->22         started        file5 signatures6 process7 file8 64 Uses ping.exe to sleep 19->64 66 Uses ping.exe to check the status of other devices and networks 19->66 25 win32.exe 1 5 19->25         started        30 PING.EXE 1 19->30         started        32 conhost.exe 19->32         started        40 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 22->40 dropped signatures9 process10 dnsIp11 50 tobi12345.hopto.org 194.5.98.210, 49719, 49729, 50501 DANILENKODE Netherlands 25->50 46 C:\Users\user\AppData\Local\Temp\dwnl.exe, PE32 25->46 dropped 78 Antivirus detection for dropped file 25->78 80 Multi AV Scanner detection for dropped file 25->80 82 Machine Learning detection for dropped file 25->82 84 4 other signatures 25->84 34 WerFault.exe 23 9 25->34         started        52 127.0.0.1 unknown unknown 30->52 file12 signatures13 process14 dnsIp15 48 192.168.2.1 unknown unknown 34->48 38 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 34->38 dropped file16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2021-08-03 15:37:04 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=562hni4mwvb6pembsdkhpigrhn2vdym2xfy7abd4qadoggjgceba._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4c11b7fb217b3675e60d659ce0a2c3eee1bdbd3e3ddba1ad6d762878f62534d1
RemcosRAT
62115059096fc430f5e8b4cfe6884444fbb2b0733760a7f4a9856791f1151ba9
RemcosRAT
753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3
RemcosRAT
89313534a5c4579b6a00425281ef0473246cfb2340653bd3cf41b584bfa40578
RemcosRAT
8f326df009924cd7bf93a0a9cb83f1ae42adec4e7afce32971da35a8d792a223
RemcosRAT
c851749fd6c9fa19293d8ee2c5b45b3dc8561115ddfe7166fbaefcb9b353b7c4
RemcosRAT
ce4962d3126223b4bd68704159cbdc7479fb2df4263fb9f3d57492e770b74a94
RemcosRAT
d06558cd5d7615d66ea2d806877d962994732909cf003eff4b95d62100840b70
RemcosRAT
d72b99be6c28cec8f3672df1ef58a69cb08524e181fb7ba53edbdab73f3ccf44
RemcosRAT
ed3a96630761ee25131c40b747f50fc55aa85d5e8f631f71bbfc901dd96bac13
RemcosRAT
+ 1'903 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:host persistence rat suricata
Link:
https://tria.ge/reports/210803-4tv76wk176/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
suricata: ET MALWARE Remcos RAT Checkin 23
Malware Config
C2 Extraction:
tobi12345.hopto.org:50501
Unpacked files
SH256 hash:
efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102
MD5 hash:
17bce5a3e92767783947afca5db665c3
SHA1 hash:
4391431a67f15394062da9659f5e70c32569df33
Detections:
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/5317bedb-6a33-42e3-95b3-d1088d579ecd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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:Detects win.remcos.

File information

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

Web download

RemcosRAT

Executable exe efb476a38cb543e7918190d477a0d13b7551e19ab971f0047c8006e319261102

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1499426/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/176116/

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