Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32674d3e5a2b16b…

MALICIOUS

PDF

99.6 KB Created: 2021-03-25 09:01:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d79e9d67e2ff58fdc230583b0bd0be3 SHA-1: 5330380660e0ddfda080cfe56a192eeb8fe4cf82 SHA-256: d32674d3e5a2b16bd907e3868000c3ae0e092f51dec287b2a223e0d3b2bdbaff
156 Risk Score

Malware Insights

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

This PDF file contains numerous external links, a common tactic for phishing or SEO spam. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing malware. The embedded links suggest an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/wix?keyword=alien+encounters+biology+worksheet+answers
    • https://fekoguto.weebly.com/uploads/1/3/4/4/134491689/tudesodavefaxag-nugujubuluviko-vanegurefavuf-melojolaju.pdf
    • http://lnstagramcopyrighthelps.com/16326087061q94zz.pdf
    • https://cdn.sqhk.co/wivenute/Ogdhbgd/batman_the_telltale_series_gameplay_xbox_one.pdf
    • https://cdn.sqhk.co/dufelogaruf/Jjg1hdk/rotten_to_the_core_meaning.pdf
    • http://naturfresh.fun/separable_equations_worksheetojhan.pdf
    • http://fibaratibe.22web.org/firusamopomapofumerigarun.pdf
    • https://cdn.sqhk.co/xekiparot/nRAdwTm/68859309013.pdf
    • https://cdn.sqhk.co/gujowaxexag/eo1iVhb/kobugunoxemomaxizowum.pdf
    • http://wowit.pro/ninimikowaze7z5ra.pdf
    • http://kugitipozad.22web.org/benigna_prostat_hiperplasia_adalah.pdf
    • https://cdn.sqhk.co/fegukajebaj/jdginYy/zombie_shoot_pandemic_survivor_apk_download.pdf
    • https://cdn.sqhk.co/lojadisexudo/d5L0gfH/clone_wars_season_3_episode_4_dailymotion.pdf
    • https://cdn.sqhk.co/getabemuto/kopfVhc/smart_puzzle_snap_frame.pdf
    • https://pewituzusab.weebly.com/uploads/1/3/0/8/130874049/gajafak.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/73ae19dc-c236-4be7-a57e-d5d1711131aa/download_lonely_planet_guides_free.pdf
    • https://uploads.strikinglycdn.com/files/e6864e6e-e761-4732-9fd8-f663df5d90b4/zuwapam.pdf
    • https://uploads.strikinglycdn.com/files/21f6dcd7-5c0f-4294-be9f-15af57331987/75537612747.pdf
    • http://vidunusebubor.epizy.com/kutikomoloxuki.pdf
    • http://mafonoxerinomif.epizy.com/spotify_premium_apk_mirror.pdf
    • http://zarenubopopo.epizy.com/non_destructive_testing_jobs_wichita_ks.pdf
    • https://uploads.strikinglycdn.com/files/0c220c31-cdb8-43a0-8348-29db25be3ca9/gamefisher_15_hp_parts.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000146cb.bin
be7af44bf08c918781515db499bc897d5f6ba621c6905e939d68ac29ae4cc625		 pdf-font-stream PDF embedded font (sfnt) at offset 0x146CB 5448 bytes
font_01_sfnt_off00015964.bin
7f85a3f989e56bb8c6e7265b4d60b4b21a6d6e4c059533da76b250da42e8ca27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15964 11780 bytes

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