Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa54c5193acb7ee…

MALICIOUS

PDF

101.6 KB Created: 2021-03-13 21:16:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 2a7df4796ec7fbc9455251e4bf74a8bc SHA-1: b611e56c57a1d71dc9e64e276bd03a5f07e54af9 SHA-256: 0aa54c5193acb7eef2176a815e456ba0d02e614a85ac017cabec1854c7ed041a
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document uses a lure related to a "Southpaw full movie free 300mb" to entice users. It contains a high-risk heuristic firing for a PDF SEO UTM redirector link, pointing to the URL https://zajinet.ru/123?utm_term=southpaw+full+movie+free++300mb. This URL is likely used to redirect users to a phishing page or to download a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://zajinet.ru/123?utm_term=southpaw+full+movie+free++300mb PDF link annotation
    • http://vakiduweg.mygamesonline.org/jogimem.pdfIn PDF document text
    • http://nifimoperokoj.medianewsonline.com/economist_world_in_2020.pdfIn PDF document text
    • http://buwubaled.mywebcommunity.org/how_to_stop_casio_illuminator_from_beeping_every_hour.pdfIn PDF document text
    • https://gofexuzadefedim.weebly.com/uploads/1/3/4/3/134306088/mudekubojaw-fuxejedivivoro-fokipebiv.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/bolexutibe.pdfIn PDF document text
    • https://jawizadobem.weebly.com/uploads/1/3/4/7/134773472/975954.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/1MXCvib/my_talking_angela_hack_download_ios.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/what_is_cultural_landscape_examples.pdfIn PDF document text
    • http://tesugujinarijag.mywebcommunity.org/lakakapuxonelagiwu.pdfIn PDF document text
    • https://diwekivoveludu.weebly.com/uploads/1/3/5/3/135313391/8977813.pdfIn PDF document text
    • https://jumuvive.weebly.com/uploads/1/3/0/7/130776409/de31020.pdfIn PDF document text
    • https://cdn.sqhk.co/tobamozusaj/5jayhfQ/deaths_in_harry_potter_and_the_cursed_child.pdfIn PDF document text
    • http://pigigozoruda.mypressonline.com/if_i_ran_the_zoo_book_app.pdfIn PDF document text
    • http://bibopasaxuvibu.mypressonline.com/algorithme_et_programmation_pascal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/wumowubinuxatetokij.pdfIn PDF document text
    • http://keregimuw.onlinewebshop.net/aromaticity_quiz.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/bezen.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/java_11_jre.pdfIn PDF document text
    • http://duvodix.myartsonline.com/joloviwexajedesotezo.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/geladeira_brastemp_inverse_422_litros_manual.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/xaxakipogofip.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/journal_voucher_template_excel.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/dasejokuzolixeloxiz.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D8 6744 bytes
SHA-256: 048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4
font_01_sfnt_off000109bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109BD 5664 bytes
SHA-256: 35af43b5eb6326e74b0d66fd37f341f29c111f4a2433c663884e3fe1d4692c7d
font_02_sfnt_off00011ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CEB 20968 bytes
SHA-256: 25d2fbfb5dd46bce752f1a10cbb8fe29a5ece10bd9e4a33cfa5ea6c363d8700b
font_03_sfnt_off00013d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D1E 2276 bytes
SHA-256: fc56fa02dbe3458291c5fb7062dec2b01f2226dd21b4eff9ce88880a69c4a691
font_04_sfnt_off000146e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146E0 4244 bytes
SHA-256: 3590d28e3221aa19927bbd45157a1e8e5a5b9686deedfb4024acf831ba1106d8
font_05_sfnt_off000157a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157A1 11344 bytes
SHA-256: 8bcdc67d96b742a7070f45dd48065cfd2543dee1acf348d1410fb3296af4b424
font_06_sfnt_off00017e06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E06 2056 bytes
SHA-256: 589f2a64e89766a8ae62896ea8444fa1a87810255c984bbc4fd2a260c4929d56

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