MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
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SHA256 hash: 66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
SHA3-384 hash: 735028a1c0d6cc697065f2a39480f5ac3c736e9db6df598cef9de70c308e6e6fe5b780b4ac46f2773b933c8d1524a023
SHA1 hash: 31e96d82538ecd77f5a190bbc070065cb64bd12b
MD5 hash: ff6f202ace40743852a03f34b7b41707
humanhash: winner-whiskey-maryland-vermont
File name:66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:871'936 bytes
First seen:2024-09-04 13:00:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:KYBfQYzELibC4jGl7Wud08XzvFn9j5Utq:KYBtbC4ql0ozt9j5Ut
Threatray 968 similar samples on MalwareBazaar
TLSH T18405F100E3ECDA6AD16F57737697385E4371A05DA4878FACA98E69D20CC7F42D61023B
TrID 35.4% (.EXE) Win64 Executable (generic) (10523/12/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4504/4/1)
6.9% (.ICL) Windows Icons Library (generic) (2059/9)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
415
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
Verdict:
Malicious activity
Analysis date:
2024-09-04 13:01:43 UTC
Tags:
remcos rat keylogger
Link:
https://app.any.run/tasks/24bb6480-cc99-4190-b5b0-a840cfa79c3f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.39825.15619.2772.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d85a12f3d7ccf99f8ff05b
Tags:
Execution Generic Infostealer Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Creating a file
Searching for the window
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
infostealer packed remcos
Link:
https://www.filescan.io/uploads/66d85a115c586f64e5f57300/reports/836822eb-c6a2-465f-a4e2-6461f6c0b50c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
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/9e28efa8-40ac-4fe6-a0f4-2de56ea588fd
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504119
Signature
.NET source code references suspicious native API functions
AI detected suspicious sample
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates executable files without a name
Delayed program exit found
Detected Remcos RAT
Drops PE files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
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
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1504119 Sample: eRH4iNjnCk.exe Startdate: 04/09/2024 Architecture: WINDOWS Score: 100 53 Suricata IDS alerts for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 17 other signatures 2->59 7 eRH4iNjnCk.exe 3 2->7         started        11 .exe 3 2->11         started        13 svchost.exe 1 1 2->13         started        process3 dnsIp4 37 C:\Users\user\AppData\...\eRH4iNjnCk.exe.log, ASCII 7->37 dropped 61 Bypasses PowerShell execution policy 7->61 63 Injects a PE file into a foreign processes 7->63 16 powershell.exe 13 7->16         started        20 eRH4iNjnCk.exe 3 3 7->20         started        23 .exe 11->23         started        25 powershell.exe 11 11->25         started        41 127.0.0.1 unknown unknown 13->41 file5 signatures6 process7 dnsIp8 31 C:\Users\user\AppData\Roaming\...\.exe, PE32 16->31 dropped 33 C:\Users\user\...\.exe:Zone.Identifier, ASCII 16->33 dropped 43 Creates executable files without a name 16->43 45 Drops PE files to the startup folder 16->45 47 Powershell drops PE file 16->47 27 conhost.exe 16->27         started        39 107.175.229.139, 49730, 49742, 49743 AS-COLOCROSSINGUS United States 20->39 35 C:\ProgramData\remcos\logs.dat, data 20->35 dropped 49 Detected Remcos RAT 20->49 51 Installs a global keyboard hook 20->51 29 conhost.exe 25->29         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-07-22 00:04:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3cqgq3xlqlcqyvme6ttlrtje6u3h7neubonb2vcd7wlzi7wysia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
08f8f68b340189648071307dc98770ddf065c25cffb8be77ede5ef463519fdc8
RemcosRAT
1b7645def29702c924a9cff0a5234b8a697f6d89be75593a725cf8f7da8c7288
RemcosRAT
402fb31162f2581de23d4f3cec47dcfd9f4cb56b116050158254ba3d65dca873
RemcosRAT
472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1
RemcosRAT
5cb7a6a04b1f58c6134f2a3dc0e0dfd6fa2e2ae61b9564b9d821b4c86d21be97
RemcosRAT
5e4ac8eb80f59f5d1b0952665962a8d357ae28d1b62ae6825520864b90b53142
RemcosRAT
91e4bb8408db1e54d407d1859cbdde5c9df1a70c755474b5c7542ad661e30d00
RemcosRAT
+ 958 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/240904-p872ja1hrd/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8823
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a866e459-df59-46a9-a22d-bc44ffffa697
Unpacked files
SH256 hash:
0524ac1c79e340640e691bc3e881be6066e95208fbdbb978e792f2ee81a9b694
MD5 hash:
64d622dc3fe5b730ef1c022bc47dbceb
SHA1 hash:
e5968e68802c61a8d4c7f1f7830c1c6ad12d306c
Link:
https://www.unpac.me/results/56687fcc-8670-40bb-98ac-16fb01a48a16/
SH256 hash:
45c7b64a55dca23ee1239649e03a7c361813dbcfc2a0817b0d8e94c907d6ed4b
MD5 hash:
fb1bc19121c4e190d83672bc71b493f0
SHA1 hash:
c3488b969ba578e28ee360be24b6416425a224a0
Link:
https://www.unpac.me/results/56687fcc-8670-40bb-98ac-16fb01a48a16/
SH256 hash:
93c8b381f044e1ac1d133f49114b5777da366de1f67956feb00ae8f21e80122d
MD5 hash:
f818296d5fd7df66b36f2e6148365dd0
SHA1 hash:
690d6ca628b859f51775bd59834cca167001fe46
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/56687fcc-8670-40bb-98ac-16fb01a48a16/
Parent samples :
b274b2b65f5ec3256ee9676fac8380af1c47457507e93d5b745156f29f386601
e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
79c7358a9ac82f4d547e027ec64b8a9854ef445ff7d1e85a2b39c0e60bc00c99
74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
497a59ce5e1c1e2bdd5e708f21aecd446d9047d17024c73abaeab9d8bfa8c4aa
1f75782173ef3b1b68650a95b7846bb35faa400d53b52fc1ad8b65a86bc72c88
66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
SH256 hash:
66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
MD5 hash:
ff6f202ace40743852a03f34b7b41707
SHA1 hash:
31e96d82538ecd77f5a190bbc070065cb64bd12b
Link:
https://www.unpac.me/results/56687fcc-8670-40bb-98ac-16fb01a48a16/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66c50343775c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

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

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