MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed
SHA3-384 hash: bbc959cbe97a4f7ff5d92d39258b9f850d23bfc37073116b33aca577ef33304d08c8a815d9194069e1328e8b341109d3
SHA1 hash: 705f30de198e290b6acddd10d1c95a16e00cf29b
MD5 hash: 19da03d3a133bf688f3cb42f317b2348
humanhash: skylark-seventeen-single-romeo
File name:Quotation 1.PDF______________________________________.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:33'280 bytes
First seen:2021-03-03 06:31:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:Ho2aYtAOujSOessT15Xwf3g3TRw6XXaySxW3WqWxGWGWDWQWVWTWqWxGW9Wbprm:TaYaOXOB93g3miyw
TLSH 61E26F107AFB5618F1776FF22FEDB2E6553FBFB2295652392810070B4651A808ED1E32
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: banabay.com
Sending IP: 185.29.8.55
From: Gio Fernandez <colombiama@banabay.com>
Subject: RE: quotations request
Attachment: Quotations.PDF__________________________________________________.r13 (contains "Quotation 1.PDF______________________________________.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation 1.PDF______________________________________.exe
Verdict:
Malicious activity
Analysis date:
2021-03-03 06:32:07 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/a89fb5fc-e915-4038-8fe0-6fab25c5017f

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/121201/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.36433867.14196.15094.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Deleting a recently created file
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Sending a UDP request
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Adding an access-denied ACE
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
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:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/625519
Signature
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Double Extension
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 361745 Sample: Quotation 1.PDF____________... Startdate: 03/03/2021 Architecture: WINDOWS Score: 100 91 Multi AV Scanner detection for domain / URL 2->91 93 Found malware configuration 2->93 95 Malicious sample detected (through community Yara rule) 2->95 97 14 other signatures 2->97 11 Quotation 1.PDF______________________________________.exe 15 8 2->11         started        15 jmaqvbo.exe 2->15         started        17 jmaqvbo.exe 2->17         started        process3 dnsIp4 87 0k10dk21kkeok2e.online 172.67.179.188, 49728, 49735, 80 CLOUDFLARENETUS United States 11->87 107 Hides threads from debuggers 11->107 19 Quotation 1.PDF______________________________________.exe 4 4 11->19         started        22 cmd.exe 1 11->22         started        24 WerFault.exe 23 9 11->24         started        109 Injects a PE file into a foreign processes 15->109 26 WerFault.exe 15->26         started        28 cmd.exe 15->28         started        30 jmaqvbo.exe 15->30         started        32 cmd.exe 17->32         started        34 jmaqvbo.exe 17->34         started        signatures5 process6 file7 73 C:\Users\user\AppData\Roaming\jmaqvbo.exe, PE32 19->73 dropped 75 C:\Users\user\...\jmaqvbo.exe:Zone.Identifier, ASCII 19->75 dropped 36 wscript.exe 1 19->36         started        38 conhost.exe 22->38         started        40 timeout.exe 1 22->40         started        77 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 26->77 dropped 42 conhost.exe 32->42         started        44 timeout.exe 32->44         started        process8 process9 46 cmd.exe 1 36->46         started        48 conhost.exe 36->48         started        50 timeout.exe 36->50         started        process10 52 jmaqvbo.exe 14 7 46->52         started        57 conhost.exe 46->57         started        dnsIp11 85 0k10dk21kkeok2e.online 52->85 79 C:\Users\user\AppData\...\wckjo5dg.newcfg, XML 52->79 dropped 99 Multi AV Scanner detection for dropped file 52->99 101 Machine Learning detection for dropped file 52->101 103 Contains functionality to steal Chrome passwords or cookies 52->103 105 5 other signatures 52->105 59 jmaqvbo.exe 52->59         started        63 WerFault.exe 52->63         started        65 cmd.exe 52->65         started        67 jmaqvbo.exe 52->67         started        file12 signatures13 process14 dnsIp15 89 trijgrscviomnbvdewacvioplmjytrewwqazxcvty.ydns.eu.ydns.eu 104.250.163.17, 49745, 7143 VOXILITYGB United States 59->89 81 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 59->81 dropped 83 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 63->83 dropped 69 conhost.exe 65->69         started        71 timeout.exe 65->71         started        file16 process17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-03-03 03:13:45 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=smktx4lorydgbvq4tsort3qt5qcvxg3qgksuhj5slvlxmu2lq7wq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210303-ka17eech9x/
Behaviour
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
trijgrscviomnbvdewacvioplmjytrewwqazxcvty.ydns.eu.ydns.eu:7143
Unpacked files
SH256 hash:
93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed
MD5 hash:
19da03d3a133bf688f3cb42f317b2348
SHA1 hash:
705f30de198e290b6acddd10d1c95a16e00cf29b
Link:
https://www.unpac.me/results/5b0ddaa4-f01f-4957-965b-c37ab6e939f2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed

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_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

NanoCore

zip 3398a1743d2bd1a4e2cafa6c0f45e016028e513aa6166928922beb667b594e9f

RemcosRAT

Executable exe 93153bf16e8e0660d61c9c9d19ee13ec055b9b7032a543a7b25d5776534b87ed

(this sample)

  
Dropped by
MD5 d1874c4b29c4e9ec7ba0d0d6cf11583a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/121201/
  
Dropped by
SHA256 3398a1743d2bd1a4e2cafa6c0f45e016028e513aa6166928922beb667b594e9f

Comments