MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332. 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: 18


Intelligence 18 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332
SHA3-384 hash: 27f6f902e778718a0422b67c962086cc9830ae7aa025a463b7f91b8d8fe0a0c4351225d4bbfc1e6a34b081cd65bdc115
SHA1 hash: 7e3dfe947c0cf96d371d601f2390ea2092fe0cce
MD5 hash: ec58c6c32582344321886d35c6be7ba7
humanhash: social-happy-cold-vermont
File name:AWB Shipping Docs No-285380XXX.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'159'104 bytes
First seen:2024-06-21 05:25:18 UTC
Last seen:2024-06-21 06:33:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 06249f041b2cdab25d6c331a97469bef (3 x RemcosRAT, 3 x Formbook)
ssdeep 49152:601xRoq0SqdSo1s9Z7N/pilLbWQ87oFfXUiUML18PGDreWOsLPpRK:knd9UQrEsLPi
Threatray 829 similar samples on MalwareBazaar
TLSH T112A5CE15D3E802A8E577DB34CA629333CAB1B8661731E58F065CD2452F33EA19B7B325
TrID 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
2.5% (.EXE) OS/2 Executable (generic) (2029/13)
2.5% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
348
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332.exe
Verdict:
Malicious activity
Analysis date:
2024-06-21 05:27:55 UTC
Tags:
remcos rat remote evasion stealer
Link:
https://app.any.run/tasks/3a894f18-5906-4a44-8b31-3b721fa9aa19

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.PWSX-gen.15237.13193.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66750fdd53600b21d545e926win7simulatehigh_evasion
Tags:
Execution Generic Network Static Remcos
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
hacktool lolbin masquerade microsoft_visual_cc packed regedit remcos remote shell32
Link:
https://www.filescan.io/uploads/66750eec6b8dba248b4387a9/reports/c6742bde-70a0-4987-bfeb-83011db104c3/overview
Verdict:
Malicious
Labled as:
Win64/GenKryptik.GYXR trojan
Link:
https://www.hybrid-analysis.com/sample/43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332
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/6955a3a7-2189-4893-8cc4-1204747b0589
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1460548
Signature
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1460548 Sample: AWB Shipping Docs No-285380... Startdate: 21/06/2024 Architecture: WINDOWS Score: 100 24 softwareupdatexkwre.duckdns.org 2->24 26 geoplugin.net 2->26 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 46 6 other signatures 2->46 8 AWB Shipping Docs No-285380XXX.exe 1 2->8         started        signatures3 44 Uses dynamic DNS services 24->44 process4 signatures5 48 Writes to foreign memory regions 8->48 50 Allocates memory in foreign processes 8->50 52 Injects a PE file into a foreign processes 8->52 11 RegAsm.exe 2 13 8->11         started        15 conhost.exe 8->15         started        process6 dnsIp7 28 softwareupdatexkwre.duckdns.org 104.223.119.206, 45682, 49705, 49706 ASN-QUADRANET-GLOBALUS United States 11->28 30 geoplugin.net 178.237.33.50, 49707, 80 ATOM86-ASATOM86NL Netherlands 11->30 54 Tries to steal Mail credentials (via file registry) 11->54 56 Contains functionalty to change the wallpaper 11->56 58 Contains functionality to steal Chrome passwords or cookies 11->58 60 5 other signatures 11->60 17 RegAsm.exe 1 11->17         started        20 RegAsm.exe 1 11->20         started        22 RegAsm.exe 2 11->22         started        signatures8 process9 signatures10 32 Tries to steal Instant Messenger accounts or passwords 17->32 34 Tries to harvest and steal browser information (history, passwords, etc) 17->34 36 Tries to steal Mail credentials (via file / registry access) 20->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332/
Threat name:
Win64.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-06-21 00:52:55 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=io7lsr64kage6uxurkst2htxqtevju4l6txzczwg4g7c7f2mwmza._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
037222fe01d316ca4fb55cb263065fa2327e29d3d1d74d0ca75e1d162cc48b67
RemcosRAT
04a15b34b627794caf34f7277c8663ea7a75d32576f6484dc85ba2bfcbe39bfd
RemcosRAT
28bf3db254e4ebed783a29d7b825f96ed5dc61ce29d9ee5cf4d14db0756b7b02
RemcosRAT
2cf1525cdb58ec9e5d47e5c66619b9cf2966155ece68a66e9bf935369971ccdc
RemcosRAT
3e0bcdfffded9aaede7644824841490767cf472e2dafebdc04b090870853d8ac
RemcosRAT
70d6e951bd55244ca98fe522042be5209783c38dbe261d9f4c577da2cc6939cd
RemcosRAT
7bd46b7c65926d301ef6d867258e13c68e9f6c8fc721cc541cf084aa0df47133
RemcosRAT
89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13
RemcosRAT
ce4085be9c0cea2fdaa6145e86166b051222fcc96eac12e1668d803a6b97ebfe
RemcosRAT
+ 819 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:1218202300 collection rat
Link:
https://tria.ge/reports/240621-f4ve7syglg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
softwareupdatexkwre.duckdns.org:45682
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a4d33cc7-6dbb-4dd7-b31b-b32ed7ea89ed
Unpacked files
SH256 hash:
43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332
MD5 hash:
ec58c6c32582344321886d35c6be7ba7
SHA1 hash:
7e3dfe947c0cf96d371d601f2390ea2092fe0cce
Link:
https://www.unpac.me/results/339fb00b-4b3b-46cf-b8e9-b48be2fd0679/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/43beb947dc50/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: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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu
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: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
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_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

File information

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

Malspam

RemcosRAT

Executable exe 43beb947dc500c4f52f48aa53d1e7784c954d38bf4ef9166c6e1be2f974cb332

(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::GetTokenInformation
ADVAPI32.dll::GetWindowsAccountDomainSid
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
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::GetConsoleOutputCP
KERNEL32.dll::GetConsoleWindow
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::BCryptDecrypt
bcrypt.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::RegSetValueExA
ADVAPI32.dll::RegSetValueExW

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