MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68
SHA3-384 hash: 2881dfe34fd5e67294dd4a0e02292877f833855740ff3f53732d1638775270f424ef358494fe60a14b796c6d378b8830
SHA1 hash: 1cacd0cf465776a4b9044eff105a28d36095efb4
MD5 hash: 768535f90360be6e782f198570060326
humanhash: white-twelve-minnesota-connecticut
File name:Paymentreportadvice.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:203'776 bytes
First seen:2020-11-27 21:46:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:cBHIxGEbENoKfmoVRLDH46Agik43GRd4EKa/wI9RHZ7alEEnAhfg3Aw8Y:67NoKfmobI6Zxt/55GdAgZ8
Threatray 1'178 similar samples on MalwareBazaar
TLSH C8141242E75C9410DAF1973BAC820985DF36BA43C8528F6D31C96B4A7F273E79046BC8
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/105853/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Verdict:
UNKNOWN
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/549702
Signature
Allocates memory in foreign processes
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
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
Executable has a suspicious name (potential lure to open the executable)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 323966 Sample: Paymentreportadvice.exe Startdate: 28/11/2020 Architecture: WINDOWS Score: 100 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 Detected Remcos RAT 2->72 74 6 other signatures 2->74 13 Paymentreportadvice.exe 3 2->13         started        17 msworrd.exe 2 2->17         started        19 msworrd.exe 2 2->19         started        process3 file4 62 C:\Users\user\...\Paymentreportadvice.exe.log, ASCII 13->62 dropped 92 Contains functionality to steal Chrome passwords or cookies 13->92 94 Contains functionality to capture and log keystrokes 13->94 96 Contains functionality to inject code into remote processes 13->96 98 Contains functionality to steal Firefox passwords or cookies 13->98 21 Paymentreportadvice.exe 4 5 13->21         started        25 Paymentreportadvice.exe 13->25         started        100 Drops executables to the windows directory (C:\Windows) and starts them 17->100 27 msworrd.exe 17->27         started        29 msworrd.exe 17->29         started        31 msworrd.exe 19->31         started        signatures5 process6 file7 56 C:\Windows\SysWOW64\mssofficee\msworrd.exe, PE32 21->56 dropped 58 C:\Windows\...\msworrd.exe:Zone.Identifier, ASCII 21->58 dropped 76 Creates an autostart registry key pointing to binary in C:\Windows 21->76 33 wscript.exe 1 21->33         started        signatures8 process9 dnsIp10 64 192.168.2.1 unknown unknown 33->64 36 cmd.exe 1 33->36         started        process11 process12 38 msworrd.exe 3 36->38         started        42 conhost.exe 36->42         started        file13 60 C:\Users\user\AppData\...\msworrd.exe.log, ASCII 38->60 dropped 78 Multi AV Scanner detection for dropped file 38->78 80 Detected unpacking (creates a PE file in dynamic memory) 38->80 82 Machine Learning detection for dropped file 38->82 84 3 other signatures 38->84 44 msworrd.exe 4 2 38->44         started        signatures14 process15 dnsIp16 66 89.249.74.213, 40511, 49770, 49772 M247GB United Kingdom 44->66 86 Writes to foreign memory regions 44->86 88 Allocates memory in foreign processes 44->88 90 Injects a PE file into a foreign processes 44->90 48 svchost.exe 44->48         started        signatures17 process18 process19 50 iexplore.exe 48->50         started        process20 52 iexplore.exe 50->52         started        54 iexplore.exe 50->54         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-11-27 21:46:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rxg5wcn6vxp2vd5ylxgomjbduuc47u72jca6mrzqwdzrvi6fjnua._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1c517ddebb6f5893d52918c51a70e56f68b50dd65e0460a673cce3625a0f8a2b
RemcosRAT
3ad976b10711565d40a43e17baa86f178a22066c982363d711db1f7edbff3ff2
RemcosRAT
3b463cccd70c11b6e8eb2be3e16113db9fc9268367c70210c49b7ef80e29d3d1
RemcosRAT
4096056536154e1fa5a10e3495cd3ddadf7c01022b7b65b0c35a67b2eac2bc6b
RemcosRAT
54c9967a2b3467f1a5961630d0bd429400e781de19866a383267c40e0f9acf2f
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
65228df6e85371a2b4b1e5340f11e36cdc94f8b39bda216c0ed143eaac36912b
RemcosRAT
6c489ebc2d7b407a9058479ee3e54b83949ef2a58ce749528cea74b4f0b5db0e
RemcosRAT
be0874a5aac730116aa21f21765232ae5ef951d8714c9eff0e5f3aa23edfbdd0
RemcosRAT
d5349ef208ec6521c83f1eccc8cf74d0364076f2b0020938716f7974af1105aa
RemcosRAT
+ 1'168 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201127-84tn62z4fx/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
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:
89.249.74.213:40511
Unpacked files
SH256 hash:
a7ac9077e12237be3be4793c8d18e893f2e27bbab647dcfd383ab54fca5038d8
MD5 hash:
daa46bbd971635a304f5a2e111bb93f7
SHA1 hash:
d0678804c23ec6cb5ee6079b4b46ac8824de398d
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/0e0b3d3e-70ca-4cd7-ba79-582421c6cd63/
Parent samples :
546b14e45dad5ac436d7c928dc8e325082eacf2bd329a6f21648f37a37fe507d
be0874a5aac730116aa21f21765232ae5ef951d8714c9eff0e5f3aa23edfbdd0
8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68
cc8de0f68549d84a62dcd11df6625b2bfe08a6cfaea102f4710e28969a60f689
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/0e0b3d3e-70ca-4cd7-ba79-582421c6cd63/
SH256 hash:
7c5322c52863558750aa4cc9e19d52351f77ace492f589c9bcebfe764e7e4c98
MD5 hash:
d376fc6a019befb4f09a70ae64d7d29f
SHA1 hash:
79702630fa2fc696d520478f2a0a2b9ee283d957
Link:
https://www.unpac.me/results/0e0b3d3e-70ca-4cd7-ba79-582421c6cd63/
SH256 hash:
8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68
MD5 hash:
768535f90360be6e782f198570060326
SHA1 hash:
1cacd0cf465776a4b9044eff105a28d36095efb4
Link:
https://www.unpac.me/results/0e0b3d3e-70ca-4cd7-ba79-582421c6cd63/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8dcddb09beaddfaa8fb85dcce62423a505cfd3fa4881e64730b0f31aa3c54b68

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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/105853/

Comments