MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3. 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: 17


Intelligence 17 IOCs YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3
SHA3-384 hash: d82838835815656d312fc54366e21b35c3923904a8a811c618dfb45a13ec792763062012f93d2f5253e7da29b414bbf2
SHA1 hash: c92310ac13276b1210e2ceebfb41ec18ec218cfc
MD5 hash: b2051458b90bd123d75ff11f68075040
humanhash: zebra-london-pluto-lactose
File name:171104221475a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492303.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:494'592 bytes
First seen:2024-03-21 17:30:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8d5087ff5de35c3fbb9f212b47d63cad (170 x RemcosRAT)
ssdeep 6144:gXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZsAX4cNc5Gv:gX7tPMK8ctGe4Dzl4h2QnuPs/Zs9cv
Threatray 689 similar samples on MalwareBazaar
TLSH T160B49E01BAD1C072D57524300D36F776EAB8BD2028364A7BB3D61D5BFE31190B62A6B7
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
384
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3.exe
Verdict:
Malicious activity
Analysis date:
2024-03-21 18:16:27 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/62569ed3-0278-4f8f-b12f-8ef821f57bb3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin remcos shell32
Link:
https://www.filescan.io/uploads/65fc6edd83a3efb188d58c90/reports/6446a9a7-7a9a-49c2-a20b-a98b3a8817ad/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/432d071c-c721-43ef-8157-2ecb397ae02f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1413454
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Found malware configuration
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
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)
Tries to steal Mail credentials (via file registry)
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: 1413454 Sample: 171104221475a7d0d19372bf3a7... Startdate: 21/03/2024 Architecture: WINDOWS Score: 100 18 geoplugin.net 2->18 24 Found malware configuration 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 Antivirus detection for URL or domain 2->28 30 8 other signatures 2->30 7 171104221475a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492303.dat-decoded.exe 3 13 2->7         started        signatures3 process4 dnsIp5 20 107.172.31.178, 2404, 49706, 49707 AS-COLOCROSSINGUS United States 7->20 22 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 7->22 32 Contains functionality to bypass UAC (CMSTPLUA) 7->32 34 Detected unpacking (changes PE section rights) 7->34 36 Detected Remcos RAT 7->36 38 8 other signatures 7->38 11 171104221475a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492303.dat-decoded.exe 1 7->11         started        14 171104221475a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492303.dat-decoded.exe 1 7->14         started        16 171104221475a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492303.dat-decoded.exe 2 7->16         started        signatures6 process7 signatures8 40 Tries to steal Instant Messenger accounts or passwords 11->40 42 Tries to steal Mail credentials (via file / registry access) 11->42 44 Tries to harvest and steal browser information (history, passwords, etc) 14->44
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-02-01 12:16:04 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
35 of 38 (92.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bvbqrnxyjbooeih5fdwcrdjv6unuyt76pzlin6obx7g3lf5l7wzq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3
RemcosRAT
70060d2f81493d076b3865dd1401aec13a95e6ed6c69c97e2346113225f4c21a
RemcosRAT
71ae98c7e6f3e776c17594e8007ecf47ea0209f0ca1142515e4958c02267bed9
RemcosRAT
88694be4b098919c7f1946f05c5caf4998770fe9b31183171363370771ea48d5
RemcosRAT
d334afd3da3c629abf0772c5be572d1d7b252b9a1ad2fae0e1809d04635f3e4b
RemcosRAT
d483c4f1670ea7a69f9cdbbf716e67f1511e271d485229566afaa67011304dd6
RemcosRAT
fc8d8e349b245c33b43169523d6d8ebbc617f07d3ec592bc71eccba272a53bed
RemcosRAT
+ 679 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection spyware stealer
Link:
https://tria.ge/reports/240321-v3pkwsdc88/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Malware Config
C2 Extraction:
107.172.31.178:2404
Unpacked files
SH256 hash:
0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3
MD5 hash:
b2051458b90bd123d75ff11f68075040
SHA1 hash:
c92310ac13276b1210e2ceebfb41ec18ec218cfc
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/9e290c5b-85b3-4c0a-9e77-3f85fd105e81/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0d4308b6f848/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/0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yara_template
Create hunting rule

File information

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

75a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492

RemcosRAT

Executable exe 0d4308b6f8485ce220fd28ec288d35f51b4c4ffe7e5686f9c1bfcdb597abfdb3

(this sample)

  
Dropped by
SHA256 75a7d0d19372bf3a71e1aeb30f7e2c384e09d1a3c0bc6502e4fd6092ce5a8492
  
Dropped by
MD5 9426ed4cd38a221015ace1074ba3ea60
  
URLhaus
https://urlhaus.abuse.ch/url/2789114/
  
Delivery method
Distributed via web download

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::GdiplusStartup
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringA
WINMM.dll::mciSendStringW
WINMM.dll::PlaySoundW
WINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileW
urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeW
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTextAttribute
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::DeleteFileA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptGenRandom
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

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