MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb. 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


RustyStealer


Vendor detections: 10


Intelligence 10 IOCs YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb
SHA3-384 hash: 7354774580a5d16a14e12e51da4b37d59bbc6704c61916ffb0721e5bd77dbfcb18d66a6b2f8ef9ccbdeb9f38f6fb9e77
SHA1 hash: b0f0bab6f6e92bc86e86fd7bff93c257a4235859
MD5 hash: e670bdc7c82eee75a6d3ada6a7c9134e
humanhash: high-table-sad-ink
File name:e670bdc7c82eee75a6d3ada6a7c9134e
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'921'472 bytes
First seen:2024-04-08 04:55:46 UTC
Last seen:2024-04-08 05:16:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 47d05f1030271094649f4fa4f0406d54 (1 x RustyStealer)
ssdeep 49152:QmDqX7TnAEgPIq4jqCqt1rdSfI8HPnAl7xcZTKXIVu4jh80:Qb7dpDH0Ou4v
TLSH T157D51911BB4A99AEC156C070C2478B625A7178CA0B35BAFF45C4B6343E79AF51F3C398
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 58c8d1d0cecbeeec (18 x AsyncRAT, 9 x XWorm, 6 x QuasarRAT)
Reporter zbetcheckin
Tags:64 exe RustyStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
354
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb.exe
Verdict:
Malicious activity
Analysis date:
2024-04-08 04:58:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/774d2b52-fcbc-46ef-a3e0-4b81c4a8c759

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Connection attempt
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/661378e50b46b303692ecbef/reports/b93ae8f1-cba5-479b-814c-0562cabb5a03/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/d277fb9e-2be7-4683-a1d1-f5918be7791e
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1421998
Signature
Antivirus detection for URL or domain
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
2%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-04-05 04:10:09 UTC
File Type:
PE+ (Exe)
Extracted files:
10
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxhuqrg7q2v4sirp4q3nxqdsnyetqotb6ryizxa2h2fittbvid5q._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240408-fkpqlshb96/
Unpacked files
SH256 hash:
a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb
MD5 hash:
e670bdc7c82eee75a6d3ada6a7c9134e
SHA1 hash:
b0f0bab6f6e92bc86e86fd7bff93c257a4235859
Link:
https://www.unpac.me/results/f452f535-1b29-45e4-8427-fe910d43fd93/
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/a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
Rule name:Rustyloader_mem_loose
Create hunting rule
Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
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.

Web download

RustyStealer

Executable exe a5cf4844df86abc9222fe436dbc0726e09383a61f4708cdc1a3e8a89cc3540fb

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2804607/

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 (FORCE_INTEGRITY)high
Reviews
IDCapabilitiesEvidence
SS_APIUses SS APIsecur32.dll::AcceptSecurityContext
secur32.dll::AcquireCredentialsHandleA
secur32.dll::ApplyControlToken
secur32.dll::DecryptMessage
secur32.dll::DeleteSecurityContext
secur32.dll::QueryContextAttributesW
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::WriteProcessMemory
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
ntdll.dll::NtCreateThreadEx
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create Filesntdll.dll::NtCreateFile
ntdll.dll::NtDeviceIoControlFile
kernel32.dll::FindFirstFileW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptGenRandom
WIN_CRYPT_APIUses Windows Crypt APIcrypt32.dll::CertAddCertificateContextToStore
crypt32.dll::CertDuplicateCertificateChain
crypt32.dll::CertDuplicateCertificateContext
crypt32.dll::CertDuplicateStore
crypt32.dll::CertEnumCertificatesInStore
crypt32.dll::CertFreeCertificateChain
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_SOCK_APIUses Network to send and receive dataws2_32.dll::bind
ws2_32.dll::closesocket
ws2_32.dll::connect
ws2_32.dll::freeaddrinfo
ws2_32.dll::getaddrinfo
ws2_32.dll::getpeername

Comments


Avatar
zbet commented on 2024-04-08 04:55:46 UTC

url : hxxp://88.218.61.219/1111.exe