Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f69a02ac066b6e7…

MALICIOUS

PDF

84.6 KB Created: 2021-05-17 17:02:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ec1d4a4940defb76c60be023401965cb SHA-1: 5abe156a3fedb48e19ea316d61980ea35960f3c8 SHA-256: 7f69a02ac066b6e75a1a45e2c1b452e58c8e747a6db88136b56f9b0c2cf4dce6
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://druttle.ru/strik?utm_term=natural+born+heroes+diet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459788/normal_60285a2cb6c96.pdfIn PDF document text
    • http://smartcoin.design/1531531334zddnd.pdfIn PDF document text
    • https://cdn.sqhk.co/rogolafu/Dyjan3v/parebogavufetazemovif.pdfIn PDF document text
    • http://topplafond.xyz/gre_quantitative_practice_test_with_solutionssl0wx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424996/normal_604a7296da32e.pdfIn PDF document text
    • http://smartcreditcheck.info/49488326003di5gp.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonaxadu/bhehahf/zombs_royale._io_unblocked_fun_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409095/normal_600929f54157d.pdfIn PDF document text
    • https://cdn.sqhk.co/lutumodigi/ggoB6ia/pepowabaxazawururudukor.pdfIn PDF document text
    • https://cdn.sqhk.co/sowodopevew/bRzeQrN/flip_jump_stack_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/jijatidos/yhbjbie/euro_truck_racer_3d_games.pdfIn PDF document text
    • https://cdn.sqhk.co/vefuwatak/gdihghy/blocks_strategy_board_games_for_families.pdfIn PDF document text
    • https://cdn.sqhk.co/voxedifi/heS26hg/dibuwenorukunefo.pdfIn PDF document text
    • https://cdn.sqhk.co/mesodimeduje/524gegi/kindergarten_worksheets_tracing_alphabet.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/jgihBhg/listen_to_tennessee_titans_game_live.pdfIn PDF document text
    • https://cdn.sqhk.co/rivinodati/icaghh8/b._y._o._t._bryan_tx.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/ieNIwxC/86043918949.pdfIn PDF document text
    • http://limecash.xyz/davosuvakowiri7vqm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b80e411-8bcd-45c4-bc53-6f765a9976ff/american_navy_base_in_germany.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/177f6742-fb9f-41c7-918e-99eecd4bb70c/1958_johnson_seahorse_10_hp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2423c939-ef30-4497-a4c4-36cbc57afcbf/bodimojafuzewusufapiwa.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_off00010e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E04 5020 bytes
SHA-256: fca800f54b32b1cad80f08182b0c159d30f4accc7dfd31367671c64171c20bf9
font_01_sfnt_off00011f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F05 10868 bytes
SHA-256: 6a8e4af20ad915562055dc25c956aaea98cf00864e33cdaf3a0ce0665636dd2f

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