MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20
SHA3-384 hash: 2244bbad788b9427e622b2351806679c761c10c043813fc23bcc53fe95132871f57bd33d92a955e93dcfb7dce969519e
SHA1 hash: dccdf0daee468f9e9bed3edf928f0839d26b47cb
MD5 hash: b85c47881ba0eb0b556b83827f8e75c8
humanhash: illinois-equal-seventeen-snake
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'948'672 bytes
First seen:2024-11-07 01:21:57 UTC
Last seen:2024-11-07 04:00:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:nagZNlJJziNRWZVTyrNR6yUd/dSlilQBsq5jL:nawNlvWNRlrHSGRBsqR
TLSH T177953398B912C2C1C199D4364A5BDBF29AB93F4356C6231D20F67F3BFDA768B664C001
TrID 29.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
22.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter Bitsight
Tags:exe RemcosRAT


Avatar
Bitsight
url: http://31.41.244.11/files/remcos_a.exe

Intelligence

File Origin
# of uploads :
28
# of downloads :
3'609
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-07 01:23:46 UTC
Tags:
remcos themida rat
Link:
https://app.any.run/tasks/b1e58dab-2ee0-4ba9-9f38-aa64c0fa1c46

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Dump.Generic.Remcos.8862D53D.23325.5916.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672c164149e92a05dde3a941
Tags:
vmdetect exploit keylog word
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Creating a file
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Connecting to a non-recommended domain
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/672c163d210633def62110b1/reports/cb53ad94-eaeb-410c-bcab-d95de4c152ad/overview
Verdict:
Malicious
Labled as:
Dump:Generic.Remcos
Link:
https://www.hybrid-analysis.com/sample/9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ab924631-4d90-4212-93aa-5932f8c728cd
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1550678
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Found malware configuration
Hides threads from debuggers
Installs a global keyboard hook
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
PE file contains section with special chars
Potentially malicious time measurement code found
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1550678 Sample: file.exe Startdate: 07/11/2024 Architecture: WINDOWS Score: 100 30 dpdnow.duckdns.org 2->30 32 Suricata IDS alerts for network traffic 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 40 9 other signatures 2->40 7 file.exe 2 4 2->7         started        11 remcos.exe 2->11         started        13 remcos.exe 2->13         started        15 remcos.exe 2->15         started        signatures3 38 Uses dynamic DNS services 30->38 process4 file5 24 C:\ProgramData\Remcos\remcos.exe, PE32 7->24 dropped 26 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 7->26 dropped 50 Detected unpacking (changes PE section rights) 7->50 52 Detected Remcos RAT 7->52 54 Creates autostart registry keys with suspicious names 7->54 62 2 other signatures 7->62 17 remcos.exe 3 3 7->17         started        56 Hides threads from debuggers 11->56 58 Tries to detect sandboxes / dynamic malware analysis system (registry check) 11->58 60 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 11->60 signatures6 process7 dnsIp8 28 dpdnow.duckdns.org 194.59.31.120, 49730, 49731, 49732 COMBAHTONcombahtonGmbHDE Germany 17->28 22 C:\ProgramData\Remcos\logs.dat, data 17->22 dropped 42 Antivirus detection for dropped file 17->42 44 Multi AV Scanner detection for dropped file 17->44 46 Detected unpacking (changes PE section rights) 17->46 48 9 other signatures 17->48 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-07 01:22:06 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tvlxmjfmzju7lnajpjuif2juwatkgrdvpt246mptgqpgipwsxiqa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:dpdnow discovery evasion persistence rat
Link:
https://tria.ge/reports/241107-bq8y8asdja/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Remcos
Remcos family
Malware Config
C2 Extraction:
dpdnow.duckdns.org:8452
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/217c8b41-f497-48ad-b7c3-ab50f39fbbce
Unpacked files
SH256 hash:
76f14facf4fb91beb5bd28086c7980116d08d49fd0181adac211bd4ae9e510fc
MD5 hash:
fc640184d9a2a4e5030f3983d141c128
SHA1 hash:
b36dc1095cbf46698b78cd37288bf1c47d5458a3
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/9d56b57c-51c6-4740-a53c-3be741a9fd41/
SH256 hash:
9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20
MD5 hash:
b85c47881ba0eb0b556b83827f8e75c8
SHA1 hash:
dccdf0daee468f9e9bed3edf928f0839d26b47cb
Link:
https://www.unpac.me/results/9d56b57c-51c6-4740-a53c-3be741a9fd41/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9d577624acca/report/overview.html
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:pe_detect_tls_callbacks
Create hunting rule
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

RemcosRAT

Executable exe 9d577624acca69f5b4097a6882e934b026a344757cf5cf31f3341e643ed2ba20

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3279488/
  
URLhaus
https://urlhaus.abuse.ch/url/3280249/
  
URLhaus
https://urlhaus.abuse.ch/url/3280251/
  
URLhaus
https://urlhaus.abuse.ch/url/3280252/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments