Malicious PDF — malware analysis report

Static analysis result for SHA-256 59bb97df22fef27c…

MALICIOUS

PDF

72.0 KB Created: 2021-03-01 09:52:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b0a15ec7fd0fac3201bfe8615a52b7d4 SHA-1: 00ff85ce67a3339c0a49f337ca475c186ce4528c SHA-256: 59bb97df22fef27cae8bfc003e55a62fc4533b1b33afde276ba7104180bd8bb4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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
  • 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://maypoin.ru/award?keyword=approaches+to+social+research+5th+edition+pdf PDF link annotation
    • http://lnstagram-verifedbadge.com/biblia_en_hebreo710f6.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/is_business_analyst_a_good_career_in_canada.pdfIn PDF document text
    • http://bofesota.66ghz.com/73327533886.pdfIn PDF document text
    • http://lnstagram-helping.live/healthy_food_guide_australia_instagramqjq9g.pdfIn PDF document text
    • http://itdiscount.info/monster_hunter_world_hunting_horn_guideawdd6.pdfIn PDF document text
    • https://voteriboxovoviv.weebly.com/uploads/1/3/4/3/134352377/xulilaxaravakar_nolimewogewob.pdfIn PDF document text
    • http://eurosett.net/pistola_airsoft_sig_sauer_p226_x-five_co2_-_gbb4o45p.pdfIn PDF document text
    • http://apeech.ru/transformers_bot_shots_game_onlineb8idp.pdfIn PDF document text
    • http://itdiscount.info/728566612355ano1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bezopiwuzalobit.rf.gd/chicken_soup_for_the_soul_preferred_stock.pdfIn PDF document text
    • http://baxudamotis.rf.gd/vsco_full_pack_mod_apk.pdfIn PDF document text
    • http://pugagewuda.rf.gd/a_wall_of_fire_rising_summary_shmoop.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9B 5356 bytes
SHA-256: 0483698121c26ee0de91e5ddcb9d2c5df28b120eb9c6dbb6c961a6c0baa01b78
font_01_sfnt_off0000efcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCF 10496 bytes
SHA-256: 894b09a3ebcd38d423798f509e02b4463287c13f0d65f343eeb3309dac0c2250