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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7
SHA3-384 hash: f924724c6186e5f07bc77327ef1a7321b980b32a723c97c4ae115e53d117affc8e9c59d9df6c234984ffcfa8c189b45c
SHA1 hash: c6915d02b759be4a2feb2cfe79bd861dd98d2486
MD5 hash: b239afc5e3fec697142676c5de84a52a
humanhash: hydrogen-angel-cold-indigo
File name:csQDaSnx.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:126'976 bytes
First seen:2022-08-10 19:53:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c90c109d16124e83cb7a25caef54f (28 x RemcosRAT, 1 x FormBook, 1 x NetWire)
ssdeep 3072:mFh1qaSs6IF9OK4b80S2Van4Va1cpcQjed5OzqhUka:Sh1qn3IF9Obbj/a1cpcQjeHOzqhUk
TLSH T17AC3E867F20B80A3D863027156507B72EEBCBC311A5D5157E7E8D8811DF588E9026AFF
TrID 33.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
14.0% (.SCR) Windows screen saver (13101/52/3)
11.2% (.EXE) Win64 Executable (generic) (10523/12/4)
7.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon d4a22b2e0792f0f0 (26 x RemcosRAT, 1 x NetWire)
Reporter pmelson
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
csQDaSnx.exe
Verdict:
Malicious activity
Analysis date:
2022-08-10 20:00:53 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/a15a6dda-682a-43fd-8ff7-3896c2169bf2

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/297751/
Detection(s):
Win.Trojan.Remcos-9763891-0
Create hunting rule

Win.Trojan.Remcos-9841897-0
Create hunting rule

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

SecuriteInfo.com.Trojan.Siggen8.46567.11590.23328.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Launching a process
Changing a file
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Running batch commands
DNS request
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/28570/overview
Behaviour
MalwareBazaar
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e29f49d-a4d0-4a78-91df-e6fd7cf8d7c2
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1049551
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Drops executables to the windows directory (C:\Windows) and starts them
Found stalling execution ending in API Sleep call
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 dropped file
Multi AV Scanner detection for submitted file
Uses cmd line tools excessively to alter registry or file data
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: 682049 Sample: csQDaSnx.exe Startdate: 10/08/2022 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 Antivirus detection for dropped file 2->59 61 7 other signatures 2->61 10 csQDaSnx.exe 4 5 2->10         started        14 ccleaner.exe 2->14         started        16 ccleaner.exe 2->16         started        process3 file4 45 C:\Windows\SysWOW64\ccleaner\ccleaner.exe, PE32 10->45 dropped 47 C:\Windows\...\ccleaner.exe:Zone.Identifier, ASCII 10->47 dropped 49 C:\Users\user\AppData\Local\...\install.vbs, data 10->49 dropped 75 Contains functionalty to change the wallpaper 10->75 77 Contains functionality to steal Chrome passwords or cookies 10->77 79 Contains functionality to capture and log keystrokes 10->79 81 3 other signatures 10->81 18 wscript.exe 1 10->18         started        20 cmd.exe 1 10->20         started        signatures5 process6 signatures7 23 cmd.exe 1 18->23         started        63 Uses cmd line tools excessively to alter registry or file data 20->63 26 conhost.exe 20->26         started        28 reg.exe 1 20->28         started        process8 signatures9 73 Drops executables to the windows directory (C:\Windows) and starts them 23->73 30 ccleaner.exe 3 3 23->30         started        34 conhost.exe 23->34         started        process10 dnsIp11 51 keyrat.ddns.net 179.176.129.87, 7777 TELEFONICABRASILSABR Brazil 30->51 53 192.168.2.1 unknown unknown 30->53 83 Antivirus detection for dropped file 30->83 85 Multi AV Scanner detection for dropped file 30->85 87 Machine Learning detection for dropped file 30->87 89 7 other signatures 30->89 36 svchost.exe 30->36         started        39 cmd.exe 1 30->39         started        signatures12 process13 signatures14 65 Contains functionality to steal Chrome passwords or cookies 36->65 67 Contains functionality to capture and log keystrokes 36->67 69 Contains functionality to steal Firefox passwords or cookies 36->69 71 Uses cmd line tools excessively to alter registry or file data 39->71 41 conhost.exe 39->41         started        43 reg.exe 1 39->43         started        process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-08-10 19:54:06 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fpfc3wyng7cis2pzzj4vesdxjpeewjaieqhiujvgx4w7apvdzl3q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:ccleaner evasion persistence rat trojan
Link:
https://tria.ge/reports/220810-ylyn1secem/
Behaviour
Modifies registry class
Modifies registry key
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
UAC bypass
Malware Config
C2 Extraction:
keyrat.ddns.net:7777
Unpacked files
SH256 hash:
2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7
MD5 hash:
b239afc5e3fec697142676c5de84a52a
SHA1 hash:
c6915d02b759be4a2feb2cfe79bd861dd98d2486
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/c64d599a-71d1-45be-85f4-978b1afb3607/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2bca2ddb0d37/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Remcos_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
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:SUSP_VBS_Wscript_Shell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon
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 2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7

(this sample)

  
Link
https://www.virustotal.com/gui/file/2bca2ddb0d37c48969f9ca795248774bc84b2408240e8a26a6bf2df03ea3caf7/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/297751/

Comments