Malicious PDF — malware analysis report

Static analysis result for SHA-256 801f69c7810f2443…

MALICIOUS

PDF

69.5 KB Created: 2021-02-25 04:43:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0054c732a6905f5b6dbd22ea9b85ba99 SHA-1: 47586e22807bd9ab84c68bc6abe75d5994710fd7 SHA-256: 801f69c7810f2443701a7654e1fec60d24d9fd207cf25ede0576e5a21917d546
124 Risk Score

Malware Insights

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

The file is a PDF containing numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing or a trojan. The presence of external URIs suggests the PDF is intended to redirect users to malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7004

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 https://baarspo.ru/award?keyword=gold%2527s+gym+stride+trainer+380+squeaking PDF link annotation
    • http://wotidoteked.mywebcommunity.org/fogodununejiwakexovox.pdfIn PDF document text
    • http://kosodidaxelo.22web.org/mlb_the_show_18_trophy_guide.pdfIn PDF document text
    • http://faxusupovetek.sportsontheweb.net/gifuriruwewodepog.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/alpha_word_in_urdu_alphabet.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/egfISid/highway_racing_game_online.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/37014517854.pdfIn PDF document text
    • http://luwogexejel.getenjoyment.net/57917017958.pdfIn PDF document text
    • https://cdn.sqhk.co/lonubugogere/gdY1ieV/53956538772.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/nosilinorojitikosunuko.pdfIn PDF document text
    • http://kiritisivasol.mywebcommunity.org/91444269626.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/mixosisal.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/9312687904.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/uT1hghg/crash_racers_figure_8.pdfIn PDF document text
    • http://dakisemakegag.sportsontheweb.net/66856757075.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/fulimodefejaz.pdfIn PDF document text
    • https://cdn.sqhk.co/zevinikiwi/zV7ibr9/bomokolozegotuj.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/what_is_the_best_automatic_espresso_machine_for_home_use.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rukosivujuxu.atwebpages.com/epson_stylus_photo_1400_ink_pad_reset_utility.pdfIn PDF document text
    • http://bidadefaj.epizy.com/chamberlain_liftmaster_professional_1_2_hp_model_number.pdfIn PDF document text
    • http://jazupizewatabal.epizy.com/35249911755.pdfIn PDF document text
    • http://birabigipo.epizy.com/30961193749.pdfIn PDF document text
    • http://vubalek.epizy.com/cryptogram_puzzles_with_answers.pdfIn PDF document text
    • http://zudupaxub.myartsonline.com/what_is_the_implication_of_ethics_in_health_and_physical_education.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3B 6004 bytes
SHA-256: 4df578ceb0b7897795dae30f521f0948ca5ae4f01368ac7803fbac460cc6b261

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