MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de. 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


BazaLoader


Vendor detections: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de
SHA3-384 hash: 62a4bc784b1063eaeee0e7c08c3d9d7dc8068ba175900ce90a40aa01afb5bd4b92be6bcd5048258243621809040d46b7
SHA1 hash: 4a013f752c2bf84ca37e418175e0d9b6f61f636d
MD5 hash: ccb6d3cb020f56758622911ddd2f1fcb
humanhash: rugby-sad-early-ten
File name:upfilles.dll
Download: download sample
Signature BazaLoader
Create hunting rule
File size:520'704 bytes
First seen:2024-05-10 22:02:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 90ad3b5a283c3a333bb222c03419fb76 (2 x BazaLoader)
ssdeep 12288:8XG3MpAOIQ1LjbJFqzqUtYP4VnRk62yoK2:SpAOfFJIq/Py8K2
TLSH T14AB4BE4A37A80CB6E867C17D88634705E3B27D610761C6DF1290536F9F3BBD2663AB12
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter pr0xylife
Tags:BazaLoader exe Latrodectus

Intelligence

File Origin
# of uploads :
1
# of downloads :
418
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
937d07239cbfee2d34b7f1fae762ac72b52fb2b710e87e02fa758f452aa62913.js
Verdict:
Malicious activity
Analysis date:
2024-05-10 22:03:42 UTC
Tags:
loader latrodectus
Link:
https://app.any.run/tasks/4d6530aa-3104-4675-9426-ac419f1961b6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug masquerade packed
Link:
https://www.filescan.io/uploads/663e999954aa07c307f51813/reports/e81ae8f4-c4ce-404d-a1c8-68ef102fc958/overview
Verdict:
Suspicious
Labled as:
TrojanBanker_Win64_Latrodectus_g
Link:
https://www.hybrid-analysis.com/sample/f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/011f932a-e021-4c8b-b39c-1f9f86d884b2
Result
Threat name:
Bazar Loader, BruteRatel, Latrodectus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1439879
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sets debug register (to hijack the execution of another thread)
Sigma detected: RunDLL32 Spawning Explorer
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Bazar Loader
Yara detected BruteRatel
Yara detected Latrodectus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1439879 Sample: upfilles.dll.exe Startdate: 11/05/2024 Architecture: WINDOWS Score: 100 39 workspacin.cloud 2->39 41 boriz400.com 2->41 43 8 other IPs or domains 2->43 53 Found malware configuration 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected Latrodectus 2->57 59 5 other signatures 2->59 9 loaddll64.exe 1 2->9         started        signatures3 process4 process5 11 rundll32.exe 1 12 9->11         started        15 cmd.exe 1 9->15         started        17 rundll32.exe 9->17         started        19 8 other processes 9->19 dnsIp6 47 altynbe.com 138.124.183.215, 443, 49750, 49757 NOKIA-ASFI Norway 11->47 49 anikvan.com 95.164.68.73, 443, 49754, 49755 NASSIST-ASGI Gibraltar 11->49 51 3 other IPs or domains 11->51 65 System process connects to network (likely due to code injection or exploit) 11->65 67 Injects code into the Windows Explorer (explorer.exe) 11->67 69 Sets debug register (to hijack the execution of another thread) 11->69 71 5 other signatures 11->71 21 explorer.exe 38 2 11->21 injected 25 rundll32.exe 15->25         started        27 WerFault.exe 20 16 17->27         started        29 WerFault.exe 16 19->29         started        31 WerFault.exe 16 19->31         started        33 WerFault.exe 16 19->33         started        signatures7 process8 dnsIp9 45 workspacin.cloud 104.21.16.155, 443, 49777, 49782 CLOUDFLARENETUS United States 21->45 61 System process connects to network (likely due to code injection or exploit) 21->61 35 rundll32.exe 21->35         started        37 rundll32.exe 21->37         started        63 Contains functionality to inject threads in other processes 25->63 signatures10 process11
Score:
12%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tfww2coucl7qz6ua2uxrm2cfo7s5t7kherwx45lte2atfvyexpa._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240510-1yccnacb8v/
Unpacked files
SH256 hash:
f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de
MD5 hash:
ccb6d3cb020f56758622911ddd2f1fcb
SHA1 hash:
4a013f752c2bf84ca37e418175e0d9b6f61f636d
Link:
https://www.unpac.me/results/be1c1568-8081-4f07-976c-9c4808cc2aa0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4cb6b684ea0/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/f4cb6b684ea097f867d406a978b3422bbf2ecfea39236bf3ab99340996b825de

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_BruteRatel_4110d879
Create hunting rule
Author:Elastic Security
Rule name:win_bazarbackdoor_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.bazarbackdoor.

File information

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

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 (NX_COMPAT)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
KERNEL_APIManipulates Windows Kernel & Driversntdll.dll::RtlInitUnicodeString
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegSetValueExW

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