MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4
SHA3-384 hash: bab905a1885a2a21e56500130105664d4a60926bfbc0afbb87419c2277a0d20af1d834ff59dd607e3b90a8cea5e6450e
SHA1 hash: 95354ecd81af4201f19556ca54ea51a33f7aa7b6
MD5 hash: 25780855d65812129515ff9dcfe31246
humanhash: orange-bluebird-berlin-stream
File name:1.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:3'293'200 bytes
First seen:2025-06-04 13:15:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f81f81baa8fb4806b1acbb8637df3c2f (2 x RemcosRAT)
ssdeep 49152:ZTFlx0nnT8pM/EJWWjzs+CXPb0mXyvF0R3j7wOZ9LLFfLWO+PvkELsuWgjCInaZ:1FlmIpx3jEPb0mEyjZNfSO+fovMCInw
TLSH T11DE5330478E279DCDF9C4AB24D08D5B048E84D1975A99A4123FF5EAB319D38EE31738B
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
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
419
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
http://rattynews.com/blog/1.exe
Verdict:
Malicious activity
Analysis date:
2025-06-03 23:44:57 UTC
Tags:
remcos rat stealer
Link:
https://app.any.run/tasks/d5212d4c-6ce7-48d8-bee8-65a2dab5a2db

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/7282/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684047c68bd5d68a12e52266
Tags:
vmdetect remcos
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for analyzing tools
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the %temp% directory
Setting a keyboard event handler
DNS request
Launching a process
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Creating a window
Creating a process with a hidden window
Changing a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
microsoft_visual_cc obfuscated packed packed packer_detected themidawinlicense
Link:
https://www.filescan.io/uploads/68404735e336a33801e31790/reports/c5b1816a-13b5-4d52-ac11-07bb5c756ea5/overview
Verdict:
Malicious
Labled as:
Mikey.Generic
Link:
https://www.hybrid-analysis.com/sample/515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/bab24c4d-f7f6-4bc1-b45a-40f8ad31cb2f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1705946
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Attempt to bypass Chrome Application-Bound Encryption
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Hides threads from debuggers
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Remcos
Sigma detected: Suspect Svchost Activity
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 evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1705946 Sample: 1.exe Startdate: 04/06/2025 Architecture: WINDOWS Score: 100 46 fasout1999tasry01.duckdns.org 2->46 48 geoplugin.net 2->48 56 Suricata IDS alerts for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for dropped file 2->60 64 11 other signatures 2->64 8 opera.exe 4 45 2->8         started        13 1.exe 3 4 2->13         started        signatures3 62 Uses dynamic DNS services 46->62 process4 dnsIp5 50 fasout1999tasry01.duckdns.org 172.111.213.69, 2994, 49691, 49692 WANSECURITYUS United States 8->50 52 geoplugin.net 178.237.33.50, 49694, 80 ATOM86-ASATOM86NL Netherlands 8->52 54 127.0.0.1 unknown unknown 8->54 34 C:\Users\user\AppData\Local\Temp\THF849.tmp, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\Temp\THF835.tmp, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\Temp\THF752.tmp, PE32 8->38 dropped 44 62 other malicious files 8->44 dropped 66 Detected Remcos RAT 8->66 68 Query firmware table information (likely to detect VMs) 8->68 70 Tries to harvest and steal browser information (history, passwords, etc) 8->70 78 5 other signatures 8->78 15 svchost.exe 8->15         started        18 svchost.exe 8->18         started        20 svchost.exe 8->20         started        25 23 other processes 8->25 40 C:\Users\user\AppData\Roaming\...\opera.exe, PE32 13->40 dropped 42 C:\Users\user\...\opera.exe:Zone.Identifier, ASCII 13->42 dropped 72 Creates an undocumented autostart registry key 13->72 74 Creates autostart registry keys with suspicious names 13->74 76 Tries to evade debugger and weak emulator (self modifying code) 13->76 22 opera.exe 2 2 13->22         started        file6 signatures7 process8 file9 82 Tries to detect sandboxes and other dynamic analysis tools (window names) 15->82 84 Tries to evade debugger and weak emulator (self modifying code) 15->84 86 Hides threads from debuggers 15->86 88 Tries to detect sandboxes / dynamic malware analysis system (registry check) 18->88 90 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 18->90 32 C:\Users\user\AppData\Local\Temp\TH58B1.tmp, PE32 22->32 dropped 92 Detected Remcos RAT 22->92 94 Attempt to bypass Chrome Application-Bound Encryption 22->94 96 Query firmware table information (likely to detect VMs) 22->96 104 2 other signatures 22->104 27 iexplore.exe 22->27         started        98 Tries to steal Instant Messenger accounts or passwords 25->98 100 Tries to steal Mail credentials (via file / registry access) 25->100 102 Tries to harvest and steal browser information (history, passwords, etc) 25->102 30 msedge.exe 25->30         started        signatures10 process11 signatures12 80 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 27->80
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4/
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-06-03 23:49:54 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kfpfc35v2t3qfn5fewhbuxwjfvrhmm7ffg6zxwiqkxcvslckr3sa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:rstart collection credential_access defense_evasion discovery execution persistence rat spyware stealer themida trojan
Link:
https://tria.ge/reports/250604-qhz4nsysdy/
Behaviour
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks whether UAC is enabled
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Themida packer
Adds policy Run key to start application
Command and Scripting Interpreter: PowerShell
Uses browser remote debugging
Detected Nirsoft tools
Identifies VirtualBox via ACPI registry values (likely anti-VM)
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
fasout1999tasry01.duckdns.org:2994
fasout1999tasry01.duckdns.org:2993
fasout1999tasry02.duckdns.org:2993
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/97b2d0ba-93bf-4363-b0aa-63bd9a46b589
Gathering data
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/515e516fb5d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4

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:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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 515e516fb5d4f702b7a5258e1a5ec92d627633e529bd9bd91055c5592c4a8ee4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3555785/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/7282/

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
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringA
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLOpenBlockingStreamW

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