Malicious PDF — malware analysis report

Static analysis result for SHA-256 338544ef83d7fab6…

MALICIOUS

PDF

76.3 KB Created: 2021-03-28 16:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ae61af7b99c71c260b920d1bec4b672 SHA-1: 395dc624bc56fd13ae7de8274bbccf26f9458a74 SHA-256: 338544ef83d7fab651278be927e80349260a18b4cc4f1aadb4cf39bdf8af2a40
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link. The heuristic 'PDF_IMAGE_LURE' indicates a common tactic where a screenshot is used to hide an actionable element. The primary URL, 'https://fokemale.ru/award?keyword=billing+system+project+report+pdf', suggests a potential phishing attempt related to billing or project reports.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6510

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 76 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://fokemale.ru/award?keyword=billing+system+project+report+pdf
    • https://cdn.sqhk.co/jelasusoved/jchvOjz/color_maze_quilt_pattern.pdf
    • http://tehnotop.site/639849674088ppid.pdf
    • http://gejikojaki.scienceontheweb.net/lowozopefanuzabow.pdf
    • http://boomua.site/belarus_tractor_manual_onlinevq7vi.pdf
    • http://erogan-columbia.site/the_mortal_instruments_film_reviewagmpe.pdf
    • http://fejekadiwoxobiz.getenjoyment.net/1725251703.pdf
    • http://vuxilenusip.mypressonline.com/budapaz.pdf
    • http://fafikup.scienceontheweb.net/6th_grade_punctuation_worksheets.pdf
    • http://tadurarawi.mypressonline.com/zogamaxilogirupelo.pdf
    • https://cdn.sqhk.co/sekigizakeku/ijhhCgc/vuzuvexatujibad.pdf
    • https://cdn.sqhk.co/wubunepan/kibnihN/harvard_foosball_table_dimensions.pdf
    • https://cdn.sqhk.co/mozoposowi/gg6hhjj/35589523027.pdf
    • http://teenagetutor.net/84383462519eg1eh.pdf
    • http://wufagezigedo.onlinewebshop.net/23576059148.pdf
    • https://s3.amazonaws.com/rizezobabub/62231284938.pdf
    • https://s3.amazonaws.com/sutawowirosuvuv/folotodobaz.pdf
    • https://s3.amazonaws.com/bulikowexunepov/how_to_uninstall_graco_click_connect_car_seat_base.pdf
    • https://s3.amazonaws.com/mokixetat/yamaha_mt_03_2007_manual.pdf

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