Malicious PDF — malware analysis report

Static analysis result for SHA-256 20356818bcce952c…

MALICIOUS

PDF

51.7 KB Created: 2021-03-10 18:36:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4cf4a63ba4212777583697250bf354e SHA-1: 7370b3cee2098138314af20024f08f9a4f57ea57 SHA-256: 20356818bcce952ca47b5ffb81b175828d7bf18c94aedab568cb3966f42dbd59
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical of phishing campaigns, containing a clickable link to an external URL. The heuristic 'PDF_IMAGE_LURE' indicates a screenshot designed to trick users into interacting with a malicious link. The presence of multiple disposable domains and unknown reputation URLs further supports a malicious intent, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9220

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 51 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://xajibur.ru/award?keyword=begrijpend+lezen+groep+4+pdf
    • http://vimobewawulipiz.mypressonline.com/32874133854.pdf
    • http://rexuwoxaga.sportsontheweb.net/46229100444.pdf
    • http://nufivuzelikonax.getenjoyment.net/debapulowa.pdf
    • http://medtechnika1.ru/the_power_of_one_pokemon_songbarr9.pdf
    • https://cdn.sqhk.co/siripeka/i2hajeL/rock_and_roll_flip_flops.pdf
    • https://cdn.sqhk.co/pumapajewa/fTfNijE/music_lab_chrome_experiments_sound_waves.pdf
    • http://vorakumezaxof.mygamesonline.org/new_cpt_codes_for_2020_neurology.pdf
    • https://cdn.sqhk.co/narulaloro/gDicXjj/mubawopefonobami.pdf
    • https://cdn.sqhk.co/pugepavofu/miinihc/6267005000.pdf
    • http://antileqphh.site/5th_grade_trivia_questions_and_answersbtjp1.pdf
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    • http://fc-aromat.ru/pibuweeo41x.pdf
    • http://reduslimitalia-ufficiale.site/13946606793pbaf7.pdf
    • http://feferabi.atwebpages.com/4973271215.pdf
    • https://uploads.strikinglycdn.com/files/02b01c2c-c37c-413d-857a-78acb42f47f1/rimito.pdf
    • http://pejemevogoge.myartsonline.com/45092968135.pdf
    • https://1618b3f4-dcc0-4047-a816-eeb1cbe43c51.filesusr.com/ugd/a01749_c21669233d8d4b70ac250c509bf659cb.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e9688e5f-351d-43ea-a8f5-90d389b4d47f/juvudokitipuriguguxa.pdf
    • https://uploads.strikinglycdn.com/files/620aabdf-5d0b-4054-990d-c14a3838d575/26020377215.pdf
    • https://uploads.strikinglycdn.com/files/59d2c926-1b09-4907-965c-aa413b6eaca5/which_brand_of_robot_vacuum_is_the_best.pdf
    • https://19f621d4-ab03-49b5-bf1d-c78de40104d4.filesusr.com/ugd/bc84a3_34145060e0b140c499b0977d29671161.pdf?index=true
    • https://30f21d72-2b41-4965-a7bc-2abb02bf1ded.filesusr.com/ugd/47e66e_92bbbcd383ff4b1e89fe701f283ce494.pdf?index=true