MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601. 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 15 File information Comments
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SHA256 hash: fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601
SHA3-384 hash: cb82729a3e7ebb3e89c8f6d9c9b6ef56173aa38790190791b3e8daf7a65c989d0d1162548920ad2ed6d060c36e5fe559
SHA1 hash: 99b2b9e45e89bae62bfeeb631278100abb1d246d
MD5 hash: 61ef99c483cd4ef6c2eeac450629820b
humanhash: sweet-seventeen-hotel-quiet
File name:rinquiryNo_PJS-40232708QO7.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'687'488 bytes
First seen:2024-08-19 12:54:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 64d33852dc9d07c22f129376f0f48025 (3 x RemcosRAT, 2 x AgentTesla, 1 x SnakeKeylogger)
ssdeep 49152:4rasJSuxF9rdUbJ2wMt7QjKuBQucL49Vd1JScFdtNYUy3N5508jY:mxD6v3w2YUSN5bY
Threatray 29 similar samples on MalwareBazaar
TLSH T179C5CE2093E805A8D877EB34CA659333E7B079924734E54F0699D6451FB3EA29B3F312
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
371
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
b7dd6f1e-f149-49de-b7c7-97daccde388e
Verdict:
Malicious activity
Analysis date:
2024-08-14 09:16:32 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/b7dd6f1e-f149-49de-b7c7-97daccde388e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.RATX-gen.7461.9174.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c3406ee7ff3f5a063b89da
Tags:
Execution Network Static Stealth Generickd
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin microsoft_visual_cc packed regedit remcos remote
Link:
https://www.filescan.io/uploads/66c340759a458267e53eddd4/reports/198827b3-e92d-49c2-bb72-54a7f5995520/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601
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/9a74fb92-8e3d-49ce-a6ac-032bcfb89f2e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1494943
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
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 autostart registry keys with suspicious names
Delayed program exit found
Detected Remcos RAT
Drops PE files to the user root directory
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494943 Sample: rinquiryNo_PJS-40232708QO7.exe Startdate: 19/08/2024 Architecture: WINDOWS Score: 100 46 eadzagba1.duckdns.org 2->46 48 geoplugin.net 2->48 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 72 8 other signatures 2->72 8 rinquiryNo_PJS-40232708QO7.exe 2 2->8         started        11 rinquiryNo_PJS-40232708QO7.exe 1 4 2->11         started        14 rinquiryNo_PJS-40232708QO7.exe 2 2->14         started        signatures3 70 Uses dynamic DNS services 46->70 process4 file5 74 Multi AV Scanner detection for dropped file 8->74 76 Writes to foreign memory regions 8->76 78 Allocates memory in foreign processes 8->78 16 InstallUtil.exe 8->16         started        19 powershell.exe 8->19         started        21 conhost.exe 8->21         started        42 C:\Users\...\rinquiryNo_PJS-40232708QO7.exe, PE32+ 11->42 dropped 44 rinquiryNo_PJS-402...exe:Zone.Identifier, ASCII 11->44 dropped 80 Creates autostart registry keys with suspicious names 11->80 82 Drops PE files to the user root directory 11->82 84 Adds a directory exclusion to Windows Defender 11->84 23 jsc.exe 3 13 11->23         started        26 powershell.exe 23 11->26         started        28 CasPol.exe 11->28         started        86 Injects a PE file into a foreign processes 14->86 30 powershell.exe 14->30         started        32 jsc.exe 14->32         started        34 conhost.exe 14->34         started        signatures6 process7 dnsIp8 54 Contains functionality to bypass UAC (CMSTPLUA) 16->54 56 Detected Remcos RAT 16->56 58 Contains functionalty to change the wallpaper 16->58 62 4 other signatures 16->62 36 conhost.exe 19->36         started        50 eadzagba1.duckdns.org 198.46.178.133, 4877, 49699 AS-COLOCROSSINGUS United States 23->50 52 geoplugin.net 178.237.33.50, 49700, 80 ATOM86-ASATOM86NL Netherlands 23->52 60 Loading BitLocker PowerShell Module 26->60 38 conhost.exe 26->38         started        40 conhost.exe 30->40         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601/
Threat name:
Win64.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-14 04:27:31 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=73ylzsv2dt374fwnjr2q4kaobhxgr2kydd5t3nsigyw7vjd5yyaq._file
Verdict:
malicious
Similar samples:
0371d6e1e7638e52af5cdef7265500ebd3426a0e3754afcf0b4f431d30f2025c
RemcosRAT
08b07b63633d2eba94040bd8e878525018fba9c354cfece62bd750e0ad7cc4a9
RemcosRAT
6012722bb5136e7dfcc33763ccd5ec5c2024a1904f928c5c75b8160b13b6ecc9
RemcosRAT
bd9c7fc40fa376b53d23750021bc645ade1e4215a1265b1fc50665b01562b12f
RemcosRAT
d183ff97ac5c70dbbabbc93155f02398dd1ad1bc5dbe9d3f72722bd6d0c189da
RemcosRAT
+ 19 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution persistence rat
Link:
https://tria.ge/reports/240819-p4832avelg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
eadzagba1.duckdns.org:4877
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a719134c-77a8-4fb3-b2d5-e41125cc2fbe
Unpacked files
SH256 hash:
fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601
MD5 hash:
61ef99c483cd4ef6c2eeac450629820b
SHA1 hash:
99b2b9e45e89bae62bfeeb631278100abb1d246d
Link:
https://www.unpac.me/results/1fc74d77-1400-4a6e-a041-8e129ad9dfcf/
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/fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Malspam

RemcosRAT

Executable exe fef0bccaba1cf7fe16cd4c750e280e09ee68e95818fb3db648362dfaa47dc601

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::CreateWellKnownSid
ADVAPI32.dll::RevertToSelf
ADVAPI32.dll::GetSecurityDescriptorLength
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetWindowsAccountDomainSid
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenThreadToken
ADVAPI32.dll::SetThreadToken
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::DeleteVolumeMountPointW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::FreeConsole
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::ReplaceFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptGenerateSymmetricKey
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptOpenAlgorithmProvider
bcrypt.dll::BCryptCloseAlgorithmProvider
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

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