MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5. 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: 13


Intelligence 13 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5
SHA3-384 hash: db4dd0fca87566121f29cf4bb51d29242229a8c198d2fea7a15135678ea5e81ead3c7b847b9a47364f56edcf1f5d37ec
SHA1 hash: cf8a852fa8eed7917bb6ddd15175129b3a6d1164
MD5 hash: 10b50afe6f0943404c210eddab22cd7d
humanhash: comet-yankee-lake-california
File name:Requerimento.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'844'344 bytes
First seen:2024-11-19 19:33:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f0b60cd0ebc38d8e4e4c7740cad62812 (2 x RustyStealer)
ssdeep 49152:VzQHDp6x3GKA8gaTX2B+xTTeYpQeh5NafuCVUUJ:RT0e9ajVdJ
TLSH T136D51A217B8A89ADC45AC0B4C24B8BB2697170CB0F34B9FF458496793E79AF51F3C254
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter johnk3r
Tags:154-205-156-20 api-computadoratualizacao-com exe mesh-computadoratualizacao-com RAT RustyStealer signed

Code Signing Certificate

Organisation:Amidaware Inc.
Issuer:Amidaware Inc.
Algorithm:sha256WithRSAEncryption
Valid from:2024-11-15T16:25:45Z
Valid to:2025-11-15T16:25:45Z
Serial number: 24cf343b844cb0786946587088f6be655b10cd27
Intelligence: 3 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: add1a84c9560b1935790c500f11fa4f9e375d422ede5e62f5904bc72f3acfaf8
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
421
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Requerimento.exe
Verdict:
Suspicious activity
Analysis date:
2024-11-19 19:34:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7ee4fe05-4c83-434c-ad38-e9445c736bef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=673ce9397b9ab5fcc4db878b
Tags:
injection gumen virus shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Searching for the window
DNS request
Connection attempt
Sending a custom TCP request
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug expand lolbin microsoft_visual_cc monero packed packer_detected powershell
Link:
https://www.filescan.io/uploads/673ce82b7a6ae3d44b9f989b/reports/80ddece2-2047-442a-9ec5-69039adfbd4b/overview
Verdict:
Suspicious
Labled as:
Malware_47.7
Link:
https://www.hybrid-analysis.com/sample/d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5
Malware family:
RustyStealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/60f40de8-32eb-4340-9b01-723d5b6c163b
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1558815
Signature
AI detected suspicious sample
Loading BitLocker PowerShell Module
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1558815 Sample: Requerimento.exe Startdate: 19/11/2024 Architecture: WINDOWS Score: 60 22 github.com 2->22 26 AI detected suspicious sample 2->26 28 Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet 2->28 30 Sigma detected: Suspicious Script Execution From Temp Folder 2->30 9 Requerimento.exe 2->9         started        signatures3 process4 dnsIp5 24 github.com 140.82.121.4, 443, 49705 GITHUBUS United States 9->24 12 cmd.exe 1 9->12         started        process6 signatures7 32 Suspicious powershell command line found 12->32 15 powershell.exe 23 12->15         started        18 conhost.exe 12->18         started        process8 signatures9 34 Loading BitLocker PowerShell Module 15->34 20 WmiPrvSE.exe 15->20         started        process10
Score:
90%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5/
Threat name:
Win64.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-11-19 19:34:05 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3brrm3jcrvxcvipkf7wx5ywhf37am6qhssaliugiinvv2iq5hgsq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/241119-x93r7s1bqe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0e2b2edc-9e23-4115-8274-73457f7a3d9d
Unpacked files
SH256 hash:
d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5
MD5 hash:
10b50afe6f0943404c210eddab22cd7d
SHA1 hash:
cf8a852fa8eed7917bb6ddd15175129b3a6d1164
Link:
https://www.unpac.me/results/7d7d9bac-512a-4cda-9e46-9f6cae5e232d/
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/d863166d228d6e2aa1ea2fed7ee2c72efe067a079480b450c8436b5d221d39a5

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

  
X
https://x.com/malwrhunterteam/status/1858775106547310667

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)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::CreateProcessW
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WriteConsoleW
kernel32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileW
ntdll.dll::NtCreateFile
ntdll.dll::NtDeviceIoControlFile
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
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