Malicious PDF — malware analysis report

Static analysis result for SHA-256 b022d6958250519b…

MALICIOUS

PDF

78.1 KB Created: 2021-03-10 15:49:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 563dbfd65dddafd18ce3690c4d2ecc39 SHA-1: c518a4915b92b3db0fedf338e6eaff5c122cedd1 SHA-256: b022d6958250519bb8f653bd3a92b5a8f48119484066be02be71f0080b2a3af6
244 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many of which point to disposable hosting and redirectors, indicating a link farm designed to distribute malicious content. Heuristics confirm the presence of malicious redirector links and a link farm. The ClamAV detection and ML classifier further support the malicious nature of this PDF, likely used as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dafemum.ru/award?keyword=michel+foucault+arqueologia+del+saber+pdf In PDF document text
    • http://mirror-x.org/31554874749kz7jn.pdfIn PDF document text
    • http://pisodaji.iblogger.org/how_much_is_jbl_charge_4_in_nigeria.pdfIn PDF document text
    • https://pivamuwonojazop.weebly.com/uploads/1/3/0/9/130969183/a7891d9aa.pdfIn PDF document text
    • http://iblack.space/marques_de_sade_biografia_resumida2ma68.pdfIn PDF document text
    • https://zutomufafet.weebly.com/uploads/1/3/1/6/131607254/duvufinilavoli.pdfIn PDF document text
    • http://civiliscmq.online/zolitudojugutokd01i9.pdfIn PDF document text
    • https://vixagudidiw.weebly.com/uploads/1/3/0/7/130775505/d489775e6.pdfIn PDF document text
    • https://wuvekodufunat.weebly.com/uploads/1/3/5/2/135298648/fobuxozugunerip.pdfIn PDF document text
    • https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/c0d103.pdfIn PDF document text
    • http://present-mag.ru/vakowojadwk4k.pdfIn PDF document text
    • https://marexuja.weebly.com/uploads/1/3/6/0/136056735/lizod_pekop_zuvibabafanadi.pdfIn PDF document text
    • https://fuvapevamasazu.weebly.com/uploads/1/3/4/5/134507747/kelukenugifaxos.pdfIn PDF document text
    • https://xinefozi.weebly.com/uploads/1/3/0/7/130775465/5855212.pdfIn PDF document text
    • http://reduslimitalia.site/34802184463w8evl.pdfIn PDF document text
    • https://zakoponuzu.weebly.com/uploads/1/3/5/9/135992890/sagige.pdfIn PDF document text
    • https://vatovuturok.weebly.com/uploads/1/3/1/8/131856009/wirak.pdfIn PDF document text
    • https://buparemekixa.weebly.com/uploads/1/3/0/7/130739227/nedujubi.pdfIn PDF document text
    • https://bujozimadepaxed.weebly.com/uploads/1/3/4/6/134615651/magupabosamizej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d876ee95-8d93-4ab6-9e55-4b8d4177c0fd/queen_of_the_damned_book_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/723ae571-dfea-4655-a1f8-6c81343b2fcb/nyx_cant_stop_wont_stop_concealer_vanilla.pdfIn PDF document text
    • http://kixixiwibatogit.epizy.com/bee_gees_too_much_heaven_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c2478f2-18b5-4fba-885d-51089dd596ff/23595445470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/904f758f-befc-4f2b-b239-c8040be53249/how_many_electrons_can_fill_an_orbital.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/189821b1-d8b8-4abe-82ae-2148a643edd7/njals_saga_svenska.pdfIn PDF document text
    • http://lunijikujapike.epizy.com/3886139072.pdfIn PDF document text
    • http://siwojanapav.epizy.com/fijegaxogokepurudewe.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE763 5464 bytes
SHA-256: 4530e560bdf99411bf379cf3a06bf6c347c7ac84e663491482e5ed55b68bfb31
font_01_sfnt_off0000fa03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA03 10032 bytes
SHA-256: 8d375addeace70dedd5e08ded6054159af0b801ea5ec3d1155c5f763f4f7ca02
font_02_sfnt_off00011c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C60 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.