Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f0b1b20933cfc1…

MALICIOUS

PDF

75.5 KB Created: 2021-04-02 21:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f9df41e24ff95def26dc22a8e717f2f SHA-1: 28099f93f4c61f2979748995a278578e35a3bf38 SHA-256: 17f0b1b20933cfc1d9312dbebd4ba126a5dcd37938ac0b816a1f673737999c3d
156 Risk Score

Malware Insights

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

This PDF document is classified as malicious, likely a phishing attempt disguised as a movie link. It contains a large number of external links, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://pelibifir.ru/strik?utm_term=el+arte+de+amar+2014+pelicula+completa
    • https://vidajubobulixi.weebly.com/uploads/1/3/4/6/134650234/3376549.pdf
    • https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/6607686.pdf
    • https://cdn.sqhk.co/nobixapo/NhlhcCR/jivewab.pdf
    • https://gidupewurugi.weebly.com/uploads/1/3/1/6/131637306/zepepo_kerupov_suxebefatutupe_juvoji.pdf
    • https://gofegupozomo.weebly.com/uploads/1/3/4/4/134479888/4535144.pdf
    • http://zedelonamigese.22web.org/what_does_the_eye_of_horus_symbolize.pdf
    • https://cdn-cms.f-static.net/uploads/4417537/normal_600f548358817.pdf
    • https://cdn.sqhk.co/zukuxenopo/ijirM24/cute_anime_couple_dress_up_games.pdf
    • http://laxetatisitu.iblogger.org/acdsee_pro_6_64_bit_free.pdf
    • https://cdn.sqhk.co/jipodipotaj/Eghicpy/shin_chan_tamil_whatsapp_status_free.pdf
    • https://cdn.sqhk.co/xidatelo/2S3CwdF/sapusotus.pdf
    • https://cdn-cms.f-static.net/uploads/4448724/normal_605df491d3917.pdf
    • https://cdn-cms.f-static.net/uploads/4479441/normal_5fd92e0aa6003.pdf
    • https://cdn-cms.f-static.net/uploads/4426828/normal_602c5e9ec9cb0.pdf
    • http://datujizid.iblogger.org/what_were_maya_angelous_accomplishments.pdf
    • https://cdn.sqhk.co/feduvefas/cidgchi/knock_you_down_meaning_in_urdu.pdf
    • http://deseputageb.iblogger.org/daur_hidup_ascaris_lumbricoides.pdf
    • https://xoselupovogim.weebly.com/uploads/1/3/4/6/134610719/2e80aac45af8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fejoxoxalomavo.rf.gd/48585662854.pdf
    • https://0e098354-e5d1-4afc-9be7-763a70ae5e44.filesusr.com/ugd/ef253e_b931363c18f84cf9a3ed63fe0fc91c44.pdf?index=true
    • https://ff9dba89-6132-4485-99c2-ace8a2453124.filesusr.com/ugd/c3f59f_93e3e06ac0294911a50ee82948223183.pdf?index=true
    • http://nuvadonopuxopu.rf.gd/femoral_hernia_anatomy.pdf
    • http://pamiwumewamem.epizy.com/multiplication_of_fractions_examples_with_answers.pdf
    • http://zijuzul.epizy.com/day6_when_you_love_someone_lyrics_translation.pdf
    • http://gajovab.epizy.com/26303863957.pdf
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_0e04a554b122458abd4167c4d0d85c86.pdf?index=true
    • 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_off0000e4c7.bin
e49c12ffe41ea18c1b2c8d4b2cf911dcd0eb0a309b6e610792dda20b687c5ab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C7 5412 bytes
font_01_sfnt_off0000f726.bin
3a49b814a86a2491f0f6750b4a494c204cd18e0ce572ad9a1a22852a54407f97		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF726 11948 bytes

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