Malicious PDF — malware analysis report

Static analysis result for SHA-256 07fa8045f0e1533b…

MALICIOUS

PDF

94.2 KB Created: 2021-02-23 23:42:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: e68ea0ae0c4121afde487d17fefd6f4e SHA-1: f323e928699c8da8682ceaa9456ca2c1dfd76169 SHA-256: 07fa8045f0e1533bacb30a4a7f06273873be69949dfd41f03bb0e7dab592bdb1
282 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics, including a critical alert for a malicious redirector link and brand-impersonation credential phishing. The document contains embedded links that lead to known malicious infrastructure, specifically impersonating Amazon to lure users into clicking. The presence of numerous PDF links suggests a link farm or SEO abuse tactic, likely to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://gevivefopunuxaf.weebly.com/uploads/1/3/4/3/134331765/zamovobino_tegeniwuzaxip.pdf.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://crophysi.ru/strik?utm_term=axial+yeti+jr+rock+racer+wheels In PDF document text
    • http://migajipanijezep.22web.org/car_racing_games_play_store.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/jjb5Zm3/mejowajem.pdfIn PDF document text
    • https://cdn.sqhk.co/sowumavag/h2ciegh/house_rules_paint_colours_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/pulobegefuzi/hdtjihc/road_rash_game_online_play_now_free.pdfIn PDF document text
    • https://cdn.sqhk.co/topefebi/ghchap9/20130252356.pdfIn PDF document text
    • https://cdn.sqhk.co/xaxovowupofa/y2gcWg2/five_nights_at_freddy_s_2_scratch.pdfIn PDF document text
    • https://cdn.sqhk.co/vomofizog/hiMhehh/free_prison_simulator_games.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/2mFJhMz/free_crossword_solver_one_across.pdfIn PDF document text
    • http://munupozazuwo.iblogger.org/73436601023.pdfIn PDF document text
    • https://cdn.sqhk.co/kipezipilojo/sjdaqih/sonny_bono_death_location.pdfIn PDF document text
    • https://cdn.sqhk.co/vujaderaz/nDmVvig/gangs_of_new_york_quotes_bill_the_butcher.pdfIn PDF document text
    • https://gevivefopunuxaf.weebly.com/uploads/1/3/4/3/134331765/zamovobino_tegeniwuzaxip.pdfIn PDF document text
    • https://jedijevabepepox.weebly.com/uploads/1/3/0/7/130739982/vepenukarukisedojawo.pdfIn PDF document text
    • https://semetipakes.weebly.com/uploads/1/3/0/7/130775831/berorerude.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvazi/coleman_cpx_6_lantern_bulb_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/gedilokagexirekurusib.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/call_bridge_card_game_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/armada_hargai_aku_stafaband.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/taworofarumimuvowixira.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/gepixolididowuzirapep.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_off0001290d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1290D 5276 bytes
SHA-256: 7caa4f5398201476e86a13b5aa393111306d2d50baab8c484a5ae459923b02e5
font_01_sfnt_off00013b15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B15 15524 bytes
SHA-256: 236570a4a839c7546ca2f5e3bf430a58aea2895d5a7d903a7d175527e789a9db

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