MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47
SHA3-384 hash: fda37b18cace831a47ab28c433a489e5c4609456cd232597c73f089cb805b29930fd095fe8f2d84afa603146e981e084
SHA1 hash: c7fc084d2b6016f8b6a230687f8d12c7ced71572
MD5 hash: 30dcecd1717926af1a3ece326d5a3f77
humanhash: east-alaska-sodium-neptune
File name:Order.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:384'962 bytes
First seen:2021-02-03 08:05:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ea4e67a31ace1a72683a99b80cf37830 (70 x Formbook, 64 x GuLoader, 54 x Loki)
ssdeep 6144:OYYVstvLGtELbMUTKZ6/BtdTDa95jJL9CeIogCQNubbjykQh:aSityjKU/BtJDgtJL9aog5u3jw
Threatray 1'346 similar samples on MalwareBazaar
TLSH E7845C823185DCDAE04329F258AFD57051B87D9E8165C60E3743BF2AA5E734234AF78E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.casaidaes.com
Sending IP: 45.85.90.5
From: Stans Beerens <office1@casaidaes.com>
Subject: Request for Quotation-RFQ HUB TECH BV
Attachment: Order.7z (contains "Order.exe")

RemcosRAT C2:
que.hopto.org:2404

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Order.exe
Verdict:
Malicious activity
Analysis date:
2021-02-03 08:08:48 UTC
Tags:
loader buerloader rat remcos keylogger
Link:
https://app.any.run/tasks/e6f76dc5-49d4-48a6-b7c6-6676ef449434

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/115264/
Detection(s):
PUA.Win.Downloader.Soft32downloader-6691270-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Sending a UDP request
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
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/597532
Signature
Antivirus detection for dropped file
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates multiple autostart registry keys
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 347799 Sample: Order.exe Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 52 que.hopto.org 2->52 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for dropped file 2->58 60 Multi AV Scanner detection for dropped file 2->60 62 7 other signatures 2->62 11 Order.exe 1 24 2->11         started        15 file.exe 9 2->15         started        17 file.exe 17 2->17         started        signatures3 process4 file5 42 C:\Users\user\AppData\Roaming\...\file.exe, PE32 11->42 dropped 44 C:\Users\user\AppData\Local\...\System.dll, PE32 11->44 dropped 66 Detected unpacking (changes PE section rights) 11->66 68 Detected unpacking (overwrites its own PE header) 11->68 70 Creates multiple autostart registry keys 11->70 80 3 other signatures 11->80 19 Order.exe 4 5 11->19         started        72 Multi AV Scanner detection for dropped file 15->72 74 Machine Learning detection for dropped file 15->74 76 Contains functionality to steal Chrome passwords or cookies 15->76 46 C:\Users\user\AppData\Local\Temp\jdl.dll, PE32 17->46 dropped 48 C:\Users\user\AppData\Local\...\System.dll, PE32 17->48 dropped 78 Maps a DLL or memory area into another process 17->78 23 file.exe 17->23         started        signatures6 process7 file8 38 C:\Users\user\AppData\Roaming\...\safe.exe, PE32 19->38 dropped 40 C:\Users\user\...\safe.exe:Zone.Identifier, ASCII 19->40 dropped 64 Creates multiple autostart registry keys 19->64 25 wscript.exe 1 19->25         started        signatures9 process10 process11 27 cmd.exe 1 25->27         started        process12 29 safe.exe 18 27->29         started        33 conhost.exe 27->33         started        file13 50 C:\Users\user\AppData\Local\...\System.dll, PE32 29->50 dropped 82 Multi AV Scanner detection for dropped file 29->82 84 Detected unpacking (changes PE section rights) 29->84 86 Detected unpacking (overwrites its own PE header) 29->86 88 6 other signatures 29->88 35 safe.exe 2 3 29->35         started        signatures14 process15 dnsIp16 54 que.hopto.org 120.29.71.254, 2404 CONVERGE-ASConvergeICTSolutionsIncPH Philippines 35->54
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 08:06:10 UTC
AV detection:
23 of 46 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfouxusyjgsobi6ohosrzgfty4j3zn5pv7nl3mw6rr3wkpfobvdq._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
remcos
Create hunting rule
Similar samples:
186f4de953b54cb622b704d012699de984f36e71820c3aff6ffd085efd79c36d
RemcosRAT
1d64c9836f3e45a4083774fa75ef8b1ca9be4b85561ec12608a10570734f3725
RemcosRAT
37dd9ac0253be5eb6036877963ff457db90932e34d9bbd2c18852bf8bfd873c2
RemcosRAT
4c1fe4c0f5d8d1277036802c83df3e083b31318dfc2c194ce93b7169d7ba6e3d
RemcosRAT
4fbb41eefb0e8a99417c855038bd7c89cc3190c07e0d4b4106d8ddbcf2634774
RemcosRAT
585b90e0edb07e66ab99c6a2fdbd7190cb0cac755d8b1197ed8eb08fa82b359d
RemcosRAT
94fa3ff2ef14ae0fcd461c89f90deae5ed6417a238ec5131ef6cb80400de0586
RemcosRAT
9c03ceb1f14c39a8f156175a3a409a7a07e6134197609bcd2f087c4ea7b42670
RemcosRAT
b6c6f8ac58b7838c87ccf2b36b2f7005c6dd86792575e1e8c7ccce30d7d6a878
RemcosRAT
b8fd90ea39eaa1c4f5cd065194403d851eda875f49f1de95d1f506039dc1a7ff
RemcosRAT
+ 1'336 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat
Link:
https://tria.ge/reports/210203-ecby6x9rea/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
que.hopto.org:2404
Unpacked files
SH256 hash:
ac3345da221de5bffa358499e0c07d7991e864a417dc414ef70c4aa50c7fda97
MD5 hash:
731a5a4c24c7f7abf46d2185db5a707b
SHA1 hash:
d51babb3047818526126fd3f8d1430eec40132b9
Detections:
win_buer_auto
Create hunting rule
Link:
https://www.unpac.me/results/61ba9f34-ed06-4be5-8b3d-605eb995298b/
SH256 hash:
a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47
MD5 hash:
30dcecd1717926af1a3ece326d5a3f77
SHA1 hash:
c7fc084d2b6016f8b6a230687f8d12c7ced71572
Link:
https://www.unpac.me/results/61ba9f34-ed06-4be5-8b3d-605eb995298b/
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/a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
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: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.

Malspam

RemcosRAT

7z fcffea1d7cc46d0f89c3fd2e2a1ff5cd0b63073f7b49e344b10694d9a381961b

RemcosRAT

Executable exe a95d4bd25849a4e0a3ce3ba51c98b3c713bcb7afafdabdb2de8c77653cae0d47

(this sample)

  
Dropped by
MD5 1d4793a93cfa395331fa26f88343ae37
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115264/
  
Dropped by
SHA256 fcffea1d7cc46d0f89c3fd2e2a1ff5cd0b63073f7b49e344b10694d9a381961b

Comments