MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08d64c718925a60031cbc3bc7b431127b0097401d9d5e403136bd1394583a0be. 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 8 File information Comments

SHA256 hash: 08d64c718925a60031cbc3bc7b431127b0097401d9d5e403136bd1394583a0be
SHA3-384 hash: 5e68ac1f23252708aadb10130eaee3969aa91c50cb98f4028395d8e4f26ddd61ee15141dda77aa533e1ee1309bc92440
SHA1 hash: bed1c8effcc4a11f6fbac6afaa78ca64e31bb263
MD5 hash: 8b170373dbb8a911ee41bbd9a41f8016
humanhash: utah-minnesota-coffee-fix
File name:8b170373dbb8a911ee41bbd9a41f8016.exe
Download: download sample
Signature RemcosRAT
File size:564'224 bytes
First seen:2020-11-25 07:08:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:NSo5Af0qcTpyxm8Avnbll+zPyz0Et8LF7v:byfb8yoN50u8Zv
Threatray 1'177 similar samples on MalwareBazaar
TLSH 24C4F1325292AE91E77A2F7191B1E2741FB67C6B9A30D61C7EC80CDB3061B188D55F32
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
185.222.57.210:48019

Intelligence


File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Connects to many ports of the same IP (likely port scanning)
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
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
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 322426 Sample: XTb7ua5Xaq.exe Startdate: 25/11/2020 Architecture: WINDOWS Score: 100 62 g.msn.com 2->62 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 10 other signatures 2->72 12 XTb7ua5Xaq.exe 6 2->12         started        16 svshost.exe 2->16         started        18 svshost.exe 3 2->18         started        signatures3 process4 file5 54 C:\Users\user\AppData\...\jtuQVJrWTWBvNp.exe, PE32 12->54 dropped 56 C:\Users\user\AppData\Local\...\tmp5203.tmp, XML 12->56 dropped 58 C:\Users\user\AppData\...\XTb7ua5Xaq.exe.log, ASCII 12->58 dropped 84 Contains functionality to steal Chrome passwords or cookies 12->84 86 Contains functionality to capture and log keystrokes 12->86 88 Contains functionality to inject code into remote processes 12->88 92 2 other signatures 12->92 20 XTb7ua5Xaq.exe 4 5 12->20         started        24 schtasks.exe 1 12->24         started        90 Drops executables to the windows directory (C:\Windows) and starts them 16->90 26 schtasks.exe 16->26         started        28 svshost.exe 16->28         started        60 C:\Users\user\AppData\...\svshost.exe.log, ASCII 18->60 dropped signatures6 process7 file8 50 C:\Windows\SysWOW64\License\svshost.exe, PE32 20->50 dropped 52 C:\Windows\...\svshost.exe:Zone.Identifier, ASCII 20->52 dropped 74 Creates an autostart registry key pointing to binary in C:\Windows 20->74 30 wscript.exe 1 20->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        signatures9 process10 process11 36 cmd.exe 1 30->36         started        process12 38 svshost.exe 4 36->38         started        41 conhost.exe 36->41         started        signatures13 76 Multi AV Scanner detection for dropped file 38->76 78 Machine Learning detection for dropped file 38->78 80 Contains functionality to steal Chrome passwords or cookies 38->80 82 3 other signatures 38->82 43 svshost.exe 38->43         started        46 schtasks.exe 38->46         started        process14 dnsIp15 64 k55nfjeasa.ad-center.marketing 185.222.57.210, 48019, 49723 ROOTLAYERNETNL Netherlands 43->64 48 conhost.exe 46->48         started        process16
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-25 02:50:28 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
k55nfjeasa.ad-center.marketing:48019
Unpacked files
SH256 hash:
08d64c718925a60031cbc3bc7b431127b0097401d9d5e403136bd1394583a0be
MD5 hash:
8b170373dbb8a911ee41bbd9a41f8016
SHA1 hash:
bed1c8effcc4a11f6fbac6afaa78ca64e31bb263
SH256 hash:
8848a563df2d12226c6d9e8eadc033dbe1e881209d2c2c42431ef394b93cf71d
MD5 hash:
cdd5b6f00989d99d652b76f64af268ae
SHA1 hash:
3ca5e52132bb8ce038d43726a6f4d83a3b24e29d
SH256 hash:
cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e
MD5 hash:
8cd5d2014866f4ef60802ff1826998a6
SHA1 hash:
8ff75946905d0b117080cc5a07e6e0bbea4e9bbd
SH256 hash:
96197f55710a81ab1e66a84f0ac9d7c146c3a79a8d6ce53b7d8d0493984cf586
MD5 hash:
7159032c713686155de46d52d4132c41
SHA1 hash:
1a4c5d1c4496792cd3036ffb8e17e5669da834cf
Detections:
win_remcos_g0 win_remcos_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
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 08d64c718925a60031cbc3bc7b431127b0097401d9d5e403136bd1394583a0be

(this sample)

  
Delivery method
Distributed via web download

Comments