Malicious PDF — malware analysis report

Static analysis result for SHA-256 df17089c691feee8…

MALICIOUS

PDF

123.8 KB Created: 2022-06-13 09:17:32 +02:00 Authoring application: berkymb (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: ffec7c0d189dbd0a62d51a4a36e00360 SHA-1: 18cb12a9c6bc87e28f79821da5a7cc78fca63b72 SHA-256: df17089c691feee8f80e39ae089affcb171553379d8a6f767849e6b8b3842d3a
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a large number of external links, many of which are designed to appear as legitimate software download pages, specifically advertising cracked software. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of 23 external PDF links, with 11 generated for SEO purposes, and 'PDF_CRACKED_SOFTWARE_LURE' confirms that at least 3 of these links advertise cracked software. The primary IOCs are the URLs associated with these lures, which are likely to lead to malicious payloads.

Machine Learning

  • Nyx PDF Classifier clean score 0.0203

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://evacdir.com/canakkale/gulon.surcharges/heckler/U2hvd2JpeiBEdmQgMiBLZXlnZW4gRG93bmxvYWQgU2l0ZQU2h/ZG93bmxvYWR8cWsxTVRWM2NHUjhmREUyTlRRNU9Ea3hOako4ZkRJMU56UjhmQ2hOS1NCeVpXRmtMV0pzYjJjZ1cwWmhjM1FnUjBWT1hR/haehnel&multiple.santiago PDF link annotation
    • https://www.nmmedical.fr/blog/advert/blood-money-720p-hd2012-hindi-moviemp4-13-best/In PDF document text
    • https://safe-tundra-59457.herokuapp.com/Enter_Password_For_The_Encrypted_File_Setup_AutoCAD_P_ID_201.pdfIn PDF document text
    • https://desifaceup.in/upload/files/2022/06/wZRNx3LTol9jlUgJTPzS_13_c4c0fdd08c1716378844e8a3d7923669_file.pdfIn PDF document text
    • https://libertycentric.com/upload/files/2022/06/izf9IZfVATUVu8uKADDk_11_4674b396a10d8c6409cd3abd5eb83228_file.pdfIn PDF document text
    • https://radiant-crag-77730.herokuapp.com/melizak.pdfIn PDF document text
    • https://fierce-crag-60675.herokuapp.com/Plagiarism_Checker_X_6011_v2020_Crack_Serial_Key_PreActivate.pdfIn PDF document text
    • https://www.fcpuch.com/advert/quran-tajwid-berwarna-pdf/In PDF document text
    • http://slimancity.com/upload/files/2022/06/dQ2SoRPnNYtahdvy2RXM_13_c4c0fdd08c1716378844e8a3d7923669_file.pdfIn PDF document text
    • https://startclube.net/upload/files/2022/06/grmlxd3zcMUfj6ZHPYNV_13_80a89b96559cbe7ae1858e12af9194bd_file.pdfIn PDF document text
    • https://thawing-forest-21874.herokuapp.com/HD_Online_Player_The_Sorcerer_And_The_White_Snake_Mob.pdfIn PDF document text
    • https://thevalleyvoice.ca/advert/ciros-automation-suite-1-1-en-74/In PDF document text
    • https://powerful-wave-10975.herokuapp.com/AlQari_203_INTERACTIVE_TEACHER_OF_QURAN_crack.pdfIn PDF document text
    • https://justproms.com/upload/files/2022/06/Z6YHeCBRzYCHFycfAkNc_13_bb65654807d2c5c7559b0cdfd2d05f21_file.pdfIn PDF document text
    • https://baptizein.com/upload/files/2022/06/7X3LxZDfgvjOR4Q8B6W5_13_84ad51b3016afff2d6c39b94ad8e4f81_file.pdfIn PDF document text
    • https://gardenlocked.com/upload/files/2022/06/ulzItUYjBGaToCXEuNkK_13_36345b016c3bab08dacb85951563b0a8_file.pdfIn PDF document text
    • https://still-bayou-16289.herokuapp.com/activation_file_delphi_2010_architect.pdfIn PDF document text
    • https://murmuring-scrubland-33006.herokuapp.com/delpqub.pdfIn PDF document text
    • https://agile-forest-93611.herokuapp.com/yasreyg.pdfIn PDF document text
    • https://verycheapcars.co.zw/advert/tomtom-go-android-apk-cracked-extra-quality/In PDF document text
    • https://fierce-crag-60675.herokuapp.com/plagiarism_checker_x_6011_v2020_crack_serial_key_preactivate.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00000e6f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE6F 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4

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