MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 01a7e3e696ee5e09a12a71808c7c07a46f256378b74c13b847f6e2838c509470. 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 11 File information Comments

SHA256 hash: 01a7e3e696ee5e09a12a71808c7c07a46f256378b74c13b847f6e2838c509470
SHA3-384 hash: d3022c33b7d18dde485b882b73b17fb0c14e8f59c2b216588ca1e6ca86004e5fa6674c72f44e7b2ca868aba87da6f3f1
SHA1 hash: 81eb768bec1700b25a8e2bf38135a7457726d3f4
MD5 hash: 839f66b06103f695c1467a991f45b577
humanhash: mirror-cold-alabama-uranus
File name:mpclient.dll
Download: download sample
Signature RemcosRAT
File size:2'604'544 bytes
First seen:2025-08-19 06:28:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 484b5808fb0105e3f676bd186ae86c25 (1 x RemcosRAT)
ssdeep 49152:PhCl9v8NORH+GC1uB/ysPPFNa9016vUdP:v0NCq32nv
Threatray 229 similar samples on MalwareBazaar
TLSH T152C5CE15D3A811B8C877D634CA569333D6B078865336E28B0699D7052F73EE29B3F326
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
83
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
mpclient.dll.exe
Verdict:
Malicious activity
Analysis date:
2025-08-19 06:34:58 UTC
Tags:
auto-reg rat remcos pecompact

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint lolbin microsoft_visual_cc obfuscated packed packed packer_detected remote
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Drops PE files with a suspicious file extension
Drops PE files with benign system names
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sample is not signed and drops a device driver
Sigma detected: Creation of an WerFault.exe in Unusual Folder
Sigma detected: Drops fake bootloader file
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Windows Binaries Write Suspicious Extensions
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1759938 Sample: mpclient.dll.exe Startdate: 19/08/2025 Architecture: WINDOWS Score: 100 49 Suricata IDS alerts for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 7 loaddll64.exe 1 2->7         started        process3 process4 9 rundll32.exe 996 7->9         started        13 cmd.exe 1 7->13         started        15 rundll32.exe 550 7->15         started        17 30 other processes 7->17 file5 31 C:\Users\user\...\svchost.exe, PE32+ 9->31 dropped 43 897 other files (4 malicious) 9->43 dropped 63 Drops PE files with a suspicious file extension 9->63 65 Writes to foreign memory regions 9->65 67 Allocates memory in foreign processes 9->67 69 Drops PE files with benign system names 9->69 19 rundll32.exe 770 13->19         started        33 C:\Users\user\...\more.com, PE32+ 15->33 dropped 35 C:\Users\user\...\mode.com, PE32+ 15->35 dropped 45 525 other files (2 malicious) 15->45 dropped 71 Injects a PE file into a foreign processes 15->71 37 C:\Users\user\...\winload.efi, PE32+ 17->37 dropped 39 C:\Users\user\...\wininit.exe, PE32+ 17->39 dropped 41 C:\Users\user\...\win32kns.sys, PE32+ 17->41 dropped 47 1879 other files (14 malicious) 17->47 dropped 73 Sample is not signed and drops a device driver 17->73 signatures6 process7 file8 23 C:\Users\user\...\dwm.exe, PE32+ 19->23 dropped 25 C:\Users\user\...\chcp.com, PE32+ 19->25 dropped 27 C:\Users\user\...\xwtpw32.dll, PE32+ 19->27 dropped 29 671 other files (none is malicious) 19->29 dropped 57 Writes to foreign memory regions 19->57 59 Allocates memory in foreign processes 19->59 61 Injects a PE file into a foreign processes 19->61 signatures9
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2025-08-18 15:30:57 UTC
File Type:
PE+ (Dll)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos discovery persistence rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Remcos family
Unpacked files
SH256 hash:
01a7e3e696ee5e09a12a71808c7c07a46f256378b74c13b847f6e2838c509470
MD5 hash:
839f66b06103f695c1467a991f45b577
SHA1 hash:
81eb768bec1700b25a8e2bf38135a7457726d3f4
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Malspam

RemcosRAT

Executable exe 01a7e3e696ee5e09a12a71808c7c07a46f256378b74c13b847f6e2838c509470

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments