MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b. 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: 19


Intelligence 19 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b
SHA3-384 hash: 5dac4d57e835305c3f283b63f73183ebe2ee63575aefb7ac177e89ae54900344c8e729ea208a0e7b7c8d40243d48bba2
SHA1 hash: 2b62f341ca2d0dd168a3cdee1fdddd9a7fbb9685
MD5 hash: 059266c194539b9143e57334bef62a28
humanhash: social-juliet-florida-avocado
File name:1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:480'768 bytes
First seen:2024-08-21 07:44:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep 12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSon9:WiLJbpI7I2WhQqZ7o9
Threatray 940 similar samples on MalwareBazaar
TLSH T1AFA4AE02BAD2C072D57161344D2AE735DABDBC212835997BB3E61D5BFD30180A73A7B2
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 :
410
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded
Verdict:
Malicious activity
Analysis date:
2024-08-21 08:31:11 UTC
Tags:
rat remcos remote keylogger stealer evasion
Link:
https://app.any.run/tasks/f32f8aff-a47a-4159-821a-f307f09ebfe9

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

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c59b00e7ff3f5a063bb02b
Tags:
Infostealer Network Stealth
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypto epmicrosoft_visual_cc evasive eventvwr fingerprint fingerprint keylogger lolbin microsoft_visual_cc remcos shell32
Link:
https://www.filescan.io/uploads/66c59b039498a0e255b05d12/reports/e5819a03-4025-432e-9979-31c2b4157b0f/overview
Verdict:
Malicious
Labled as:
Dacic.A9349469.A.Generic
Link:
https://www.hybrid-analysis.com/sample/56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b
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/5080acff-b7ba-4103-b15d-3301fd52c883
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1496453
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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 unpacking (changes PE section rights)
Found malware configuration
Installs a global keyboard hook
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
Suricata IDS alerts for network traffic
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
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1496453 Sample: 1724226243b9348f3b411af5825... Startdate: 21/08/2024 Architecture: WINDOWS Score: 100 21 olympicgold.ddns.net 2->21 23 geoplugin.net 2->23 29 Suricata IDS alerts for network traffic 2->29 31 Found malware configuration 2->31 33 Malicious sample detected (through community Yara rule) 2->33 37 8 other signatures 2->37 7 1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded.exe 2 15 2->7         started        signatures3 35 Uses dynamic DNS services 21->35 process4 dnsIp5 25 olympicgold.ddns.net 94.156.65.159, 4646, 49704, 49705 TERASYST-ASBG Bulgaria 7->25 27 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 7->27 19 C:\ProgramData\remcos\logs.dat, data 7->19 dropped 39 Detected unpacking (changes PE section rights) 7->39 41 Tries to steal Mail credentials (via file registry) 7->41 43 Contains functionalty to change the wallpaper 7->43 45 8 other signatures 7->45 12 1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded.exe 1 7->12         started        15 1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded.exe 1 7->15         started        17 1724226243b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6655.dat-decoded.exe 2 7->17         started        file6 signatures7 process8 signatures9 47 Tries to steal Instant Messenger accounts or passwords 12->47 49 Tries to harvest and steal browser information (history, passwords, etc) 12->49 51 Tries to steal Mail credentials (via file / registry access) 15->51
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-21 07:45:06 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k2tr5tqbe22x7r7ma7tm4cgfux33kgq6ry73gdwnryauzg2l3ifq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
037222fe01d316ca4fb55cb263065fa2327e29d3d1d74d0ca75e1d162cc48b67
RemcosRAT
0a6b4d008994bb06574688d817089831fc7404e5e458c38e7a1464d072a8fd7a
RemcosRAT
19c2d1f233ea3d256026796196e7067af26534ab46874cf4fdbacb7e73e5922a
RemcosRAT
1eb85ede00f809ba0f2ae9ea64c78615705f7314f31934887849c60f86b6505e
RemcosRAT
2cf1525cdb58ec9e5d47e5c66619b9cf2966155ece68a66e9bf935369971ccdc
RemcosRAT
3e0bcdfffded9aaede7644824841490767cf472e2dafebdc04b090870853d8ac
RemcosRAT
89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13
RemcosRAT
9a86f5ec47aaa7ae34e71528ca34e75fc806064aa3dc664bbee2db7b35b7b6b2
RemcosRAT
ad87f3ad6fb14d2b79d7b7aac1b38bc04fd20757460da0f02cac139408df9969
RemcosRAT
ce4085be9c0cea2fdaa6145e86166b051222fcc96eac12e1668d803a6b97ebfe
RemcosRAT
+ 930 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:olgm collection credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240821-jldxaaxapa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Malware Config
C2 Extraction:
olympicgold.ddns.net:4646
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0600323a-a643-4e5f-aeab-bb33c31a04de
Unpacked files
SH256 hash:
56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b
MD5 hash:
059266c194539b9143e57334bef62a28
SHA1 hash:
2b62f341ca2d0dd168a3cdee1fdddd9a7fbb9685
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/980da826-cec5-4c94-82f2-3dc0aa75a162/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/56a71ece0126/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/56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b

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:DebuggerCheck__API
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_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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

File information

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

b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6

RemcosRAT

Executable exe 56a71ece0126b57fc7ec07e6ce08c5a5f7b51a1e8e3fb30ecd8e014c9b4bda0b

(this sample)

  
Dropped by
SHA256 b9348f3b411af582580bd6a603a5ce20b028cbcc95a10a9590dca310f3191fd6
  
Dropped by
MD5 4b3f268aa7b81ace5d5ce86c45e98332
  
URLhaus
https://urlhaus.abuse.ch/url/3119701/
  
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::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
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::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
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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