MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5. 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: 14


Intelligence 14 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5
SHA3-384 hash: 8b0428030f2fce3bead8999f00ffe16d9091ffc803f86e04ac9bd4707a1d63ff13536fa4fa5848f66055b34a9d5bda7a
SHA1 hash: 9f1cfa7df0680a3b65a192ee8039465d129b62b7
MD5 hash: 2a0c96488c0bf6d685ffe058c1ebb06d
humanhash: cup-black-georgia-timing
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:3'473'920 bytes
First seen:2023-02-01 12:55:01 UTC
Last seen:2023-02-01 14:47:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:EAzFN9Z2XBQFio7Q0sE93KBLPdA6sU1rdUEHbR2XSQXuCRP7+jNJCRZgC/LUa9kJ:EA36kio7Q0sENKHi4wkhlKYQkjRj
Threatray 2'778 similar samples on MalwareBazaar
TLSH T157F5B6203EFA901AF1B7BF759AE475969EBEF6633B07954E1050038A0A13A40DDD173E
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter jstrosch
Tags:.NET exe MSIL RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
228
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-01 13:00:11 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/c13e27de-4499-46db-b61b-b09a262ade32

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/358977/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.63120.16523.18845.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
Launching a process
Creating a window
Query of malicious DNS domain
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
hacktool remcos
Link:
https://www.filescan.io/uploads/63da6129fcc41339192f0125/reports/19e12758-08ad-46ff-98b9-a0e6186c2d39/overview
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3725b5d7-9103-4dde-9baf-716041e8e11f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1163182
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 795941 Sample: file.exe Startdate: 01/02/2023 Architecture: WINDOWS Score: 100 69 rem.unionbindinqcompany.it 2->69 71 mdec.nelreports.net 2->71 73 4 other IPs or domains 2->73 93 Malicious sample detected (through community Yara rule) 2->93 95 Antivirus detection for URL or domain 2->95 97 Multi AV Scanner detection for submitted file 2->97 99 4 other signatures 2->99 10 file.exe 1 2->10         started        signatures3 process4 file5 65 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->65 dropped 101 Contains functionality to steal Chrome passwords or cookies 10->101 103 Contains functionality to inject code into remote processes 10->103 105 Contains functionality to steal Firefox passwords or cookies 10->105 107 3 other signatures 10->107 14 file.exe 3 3 10->14         started        signatures6 process7 dnsIp8 79 rem.unionbindinqcompany.it 194.147.140.165, 3361, 49708, 49711 PTPEU unknown 14->79 67 C:\ProgramData\remcos\logs.dat, data 14->67 dropped 87 Writes to foreign memory regions 14->87 89 Maps a DLL or memory area into another process 14->89 91 Installs a global keyboard hook 14->91 19 svchost.exe 12 14->19         started        21 svchost.exe 12 14->21         started        23 svchost.exe 14->23         started        25 4 other processes 14->25 file9 signatures10 process11 process12 27 chrome.exe 16 1 19->27         started        30 chrome.exe 19->30         started        32 chrome.exe 21->32         started        34 chrome.exe 21->34         started        36 chrome.exe 23->36         started        38 chrome.exe 23->38         started        40 chrome.exe 25->40         started        42 chrome.exe 25->42         started        44 5 other processes 25->44 dnsIp13 75 192.168.2.1 unknown unknown 27->75 77 239.255.255.250 unknown Reserved 27->77 46 chrome.exe 27->46         started        49 chrome.exe 30->49         started        51 chrome.exe 32->51         started        53 chrome.exe 34->53         started        55 chrome.exe 36->55         started        57 chrome.exe 38->57         started        59 chrome.exe 40->59         started        61 chrome.exe 42->61         started        63 4 other processes 44->63 process14 dnsIp15 81 mdec.nelreports.net 46->81 83 part-0032.t-0009.fdv2-t-msedge.net 13.107.237.60, 443, 49726, 49727 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 46->83 85 10 other IPs or domains 46->85
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-02-01 03:33:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u264pus25fbncumc2jxejhbssnanwu2hbidzmr6tw3o3a236fdkq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2bff54b9373397bb78dc3dd57f37b85affb564edec73fbb265e9a14d313a2a1d
RemcosRAT
50a13f6bced0bda92a35b13106f74959e15a48f47d18b04bc49ee95c82482cf7
RemcosRAT
6e7342a71d1839f461df4027f3e01bdc607bf16605900d41167631805b598d8c
RemcosRAT
863f528bd37764a0105ce3cbc3ce6dbbe837b756e5df0ed150e2242926e8a64f
RemcosRAT
923dece3727e56390fd3e56305a2e30f0599c6ae7b79877aa2c9823af34fcf9c
RemcosRAT
ae6134942672653a0652d8b74100de3c7bccd094ee66bbc0314e75b276cfb1c8
RemcosRAT
d631846a6b827332486abee9223f46c0beb25334d6722a8bf43641c4e32b5741
RemcosRAT
f0ba1150b808e391fd34e60538f46e4b2ee56c919a7fd4e2ec26e6ca27d2195d
RemcosRAT
f4fe0badd5c3bd5336955988d27f15b53f2eba9b42d8e9c0fe2e44aa2625c51f
RemcosRAT
+ 2'768 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost brand:microsoft persistence phishing rat
Link:
https://tria.ge/reports/230201-p5rv5sfb5w/
Behaviour
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
Registers COM server for autorun
Sets file execution options in registry
Remcos
Malware Config
C2 Extraction:
rem.unionbindinqcompany.it:3361
Unpacked files
SH256 hash:
52ab37464f6d4fa27e6c9377c7aa27aa8a74072810ab02ec6cb162091d2e07b5
MD5 hash:
f335e8bbe088b7ad1610049f407217b3
SHA1 hash:
34985f5aca6de446013d712a344822769653cd82
Link:
https://www.unpac.me/results/85b0e544-3258-4cbf-a5e2-9b375af979a4/
SH256 hash:
8f921c63d8ff677d4e08cc5f390ddee21770123716be64b5f6dc7f969a5c4ab5
MD5 hash:
149d083d4fe6911237071fa7f4764573
SHA1 hash:
31fc79b37c58a304c91ffa887f4ce498c0963a94
Detections:
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/85b0e544-3258-4cbf-a5e2-9b375af979a4/
Parent samples :
c834570ccd6b2682beabbfc8d40e992d52f386aa4542edb5f171250d6f1cb549
de8a8e788979f605ae68981ec3bf84711e957bfa4746d5f23c2015a8ec928c32
a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5
SH256 hash:
a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5
MD5 hash:
2a0c96488c0bf6d685ffe058c1ebb06d
SHA1 hash:
9f1cfa7df0680a3b65a192ee8039465d129b62b7
Link:
https://www.unpac.me/results/85b0e544-3258-4cbf-a5e2-9b375af979a4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a6bdc7d25ae9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Web download

RemcosRAT

Executable exe a6bdc7d25ae942d15182d26e449c329340db53470a079647d3b6ddb06b7e28d5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2518821/
Cape
Cape
https://www.capesandbox.com/analysis/358977/

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