MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75e017e742b2506cdda2a132759075c7b187ca941df606b34116d0452ef04fd0. 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: 18


Intelligence 18 IOCs YARA 15 File information Comments

SHA256 hash: 75e017e742b2506cdda2a132759075c7b187ca941df606b34116d0452ef04fd0
SHA3-384 hash: 3c5e94bffaaf2025943354096c67ca71ce314f3c0e2bb170b0a9d21945f327e53e35889009b125f91e2c489a1a206ec3
SHA1 hash: 36bc08893282e08210bafd666d09c5f7f2a81e68
MD5 hash: b4a65efc3640455ae3b284515d884ef7
humanhash: oven-robin-early-march
File name:20230921-8569342.exe
Download: download sample
Signature RemcosRAT
File size:1'061'888 bytes
First seen:2023-09-21 10:30:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:6RWQYAE36CIx5yD7cyR5JMwUlkR9tWYk4Sr8sBWRvooPRle:cWQ3nxkDZ52pl3Yk4SAiqvjPC
Threatray 2'595 similar samples on MalwareBazaar
TLSH T1EE35235603AD1BB3C7ACC9BBD4C315436B39D9CA468BE706708D04285D1A3FF782689B
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 74f4d4d4cce4e8e0 (27 x AgentTesla, 19 x Formbook, 17 x DBatLoader)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
103.212.81.157:6609

Intelligence


File Origin
# of uploads :
1
# of downloads :
300
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
20230921-8569342.exe
Verdict:
Malicious activity
Analysis date:
2023-09-21 10:33:16 UTC
Tags:
rat remcos

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

Behaviour
Searching for the window
Launching a process
Creating a file
Running batch commands
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Creating a process from a recently created file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed smartassembly smart_assembly
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:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sigma detected: Remcos
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1312196 Sample: 20230921-8569342.exe Startdate: 21/09/2023 Architecture: WINDOWS Score: 100 64 Snort IDS alert for network traffic 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Found malware configuration 2->68 70 10 other signatures 2->70 8 20230921-8569342.exe 2 2->8         started        10 Phtos.exe 1 2->10         started        13 Phtos.exe 2->13         started        15 2 other processes 2->15 process3 signatures4 17 vbc.exe 3 14 8->17         started        21 cmd.exe 2 8->21         started        23 cmd.exe 3 8->23         started        26 cmd.exe 1 8->26         started        82 Multi AV Scanner detection for dropped file 10->82 84 Machine Learning detection for dropped file 10->84 86 Writes to foreign memory regions 10->86 28 cmd.exe 10->28         started        32 3 other processes 10->32 88 Allocates memory in foreign processes 13->88 90 Injects a PE file into a foreign processes 13->90 34 4 other processes 13->34 30 svchost.exe 3 15->30         started        36 4 other processes 15->36 process5 dnsIp6 60 moremoney.myftp.org 103.212.81.157, 49706, 6609 KANTIPUR-AS-APKantipurPublicationPvtLtdNP Bangladesh 17->60 62 geoplugin.net 178.237.33.50, 49707, 80 ATOM86-ASATOM86NL Netherlands 17->62 72 Contains functionalty to change the wallpaper 17->72 74 Contains functionality to register a low level keyboard hook 17->74 76 Delayed program exit found 17->76 78 Uses schtasks.exe or at.exe to add and modify task schedules 21->78 38 conhost.exe 21->38         started        58 C:\Users\user\AppData\Local\...\Phtos.exe, PE32 23->58 dropped 40 conhost.exe 23->40         started        42 conhost.exe 26->42         started        44 schtasks.exe 1 26->44         started        48 2 other processes 28->48 80 Query firmware table information (likely to detect VMs) 30->80 50 3 other processes 32->50 52 4 other processes 34->52 46 WerFault.exe 10 36->46         started        54 4 other processes 36->54 file7 signatures8 process9 process10 56 Conhost.exe 42->56         started       
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2023-09-21 10:31:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:888888 rat
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
moremoney.myftp.org:6609
Unpacked files
SH256 hash:
c19cc0aa65e49bb7f918c7a23df61764036f0bf780e040d5ae06a81d65b4fc1b
MD5 hash:
27d4b17953760fae26ad3e26f726a484
SHA1 hash:
c0af063778ed5d77033056fde969f2f0356511e3
SH256 hash:
80b548358128798c9872e3096c7635986203ce7568dadbc722457ef090bf0794
MD5 hash:
d08ea6ed00827ad42c27190da6e7e6f7
SHA1 hash:
513dbf0f3bb8dcebafdafd2653f824cfdd960580
Detections:
Remcos win_remcos_auto
SH256 hash:
75e017e742b2506cdda2a132759075c7b187ca941df606b34116d0452ef04fd0
MD5 hash:
b4a65efc3640455ae3b284515d884ef7
SHA1 hash:
36bc08893282e08210bafd666d09c5f7f2a81e68
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__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.

File information


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

Comments