MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920. 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 1 File information Comments

SHA256 hash: d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920
SHA3-384 hash: 45e8e9e44705e7df16b2f9b75d1e7f9368453aba0572dd6623a1c719162befd832a452d784d6432e1f865e0144814a2a
SHA1 hash: ae01779d928f053c997e536b073f2ee4ec034b0d
MD5 hash: febb47ebfc843b8152c26ab3382ea059
humanhash: purple-march-dakota-lake
File name:febb47ebfc843b8152c26ab3382ea059.exe
Download: download sample
Signature RemcosRAT
File size:1'164'288 bytes
First seen:2021-08-10 13:48:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 24576:dKpPp9AR95ykxiTXesSdJwjG1XaD1dv2delN/KHoaHEnj/a0hR9:6PpKRykw8dCjEAdv2Y+e/tH
Threatray 510 similar samples on MalwareBazaar
TLSH T1B445124723809373C414AB3A149AA3874670EED4DFA2EEE9BD413A2D1DF6741CE06797
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
E-Remittance Copy.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-10 13:25:35 UTC
Tags:
encrypted exploit CVE-2017-11882 loader rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a file in the Windows directory
Modifying an executable file
Creating a window
Sending a UDP request
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the shell\open\command registry branches
Infecting executable files
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:
Neshta Remcos
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Infects executable files (exe, dll, sys, html)
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample is not signed and drops a device driver
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 AntiVM3
Yara detected Neshta
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 462638 Sample: y9pE5n5u9D.exe Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for dropped file 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 8 other signatures 2->45 9 y9pE5n5u9D.exe 4 2->9         started        process3 file4 27 C:\Windows\svchost.com, PE32 9->27 dropped 29 C:\Users\user\AppData\Local\...\setup.exe, PE32 9->29 dropped 31 C:\Users\user\AppData\...\y9pE5n5u9D.exe, PE32 9->31 dropped 33 107 other malicious files 9->33 dropped 51 Creates an undocumented autostart registry key 9->51 53 Drops PE files with a suspicious file extension 9->53 55 Drops executable to a common third party application directory 9->55 57 Infects executable files (exe, dll, sys, html) 9->57 13 y9pE5n5u9D.exe 3 5 9->13         started        signatures5 process6 file7 35 C:\Users\user\AppData\Local\...\tmp8E54.tmp, XML 13->35 dropped 37 C:\Users\user\AppData\Roaming\kzqTuNuE.exe, PE32 13->37 dropped 59 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 13->59 61 Drops executables to the windows directory (C:\Windows) and starts them 13->61 17 svchost.com 1 13->17         started        signatures8 process9 file10 25 C:\Windows\directx.sys, ASCII 17->25 dropped 47 Uses schtasks.exe or at.exe to add and modify task schedules 17->47 49 Sample is not signed and drops a device driver 17->49 21 schtasks.exe 1 17->21         started        signatures11 process12 process13 23 conhost.exe 21->23         started       
Threat name:
Win32.Virus.Neshta
Status:
Malicious
First seen:
2021-08-10 11:16:49 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost evasion persistence rat spyware stealer
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Loads dropped DLL
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Executes dropped EXE
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Modifies system executable filetype association
Remcos
Malware Config
C2 Extraction:
45.137.22.101:5888
Unpacked files
SH256 hash:
d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920
MD5 hash:
febb47ebfc843b8152c26ab3382ea059
SHA1 hash:
ae01779d928f053c997e536b073f2ee4ec034b0d
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:MAL_Neshta_Generic
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research

File information


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

Web download

RemcosRAT

Executable exe d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920

(this sample)

  
Delivery method
Distributed via web download

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