Malicious PDF — malware analysis report

Static analysis result for SHA-256 574552ce069a6911…

MALICIOUS

PDF

77.8 KB Created: 2021-04-04 12:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ac66f87c3ed9c7c5438e12c31dc326e SHA-1: 02c15cd113d936e9bc300d946cf5a555871c21d0 SHA-256: 574552ce069a691120bb7dfe98d3a1e40d8a0ceba0e6a459e2c1917ef4ee80d2
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, and it contains multiple embedded URLs. The document body, though partially corrupted, suggests a lure related to an 'election guide'. The presence of external URIs indicates an attempt to redirect the user to malicious content, likely a phishing attempt or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/123?utm_term=aila+2020+election+guide
    • https://cdn.sqhk.co/fadujiwexi/igeigbu/prison_break_season_1_episode_20_soundtrack.pdf
    • http://3-bureaureport.info/kujapuxatagufevumiwidejuwypsjd.pdf
    • https://cdn.sqhk.co/zapimafe/f6hgigo/perfect_cutting_machine.pdf
    • http://delayikapy.xyz/is_qled_tv_better_than_4k9tyrq.pdf
    • http://f1l3download.site/wedipakudexavatibog57uzx.pdf
    • http://daddytestit.xyz/iupac_nomenclature_practice_problems_answerswj7sw.pdf
    • https://xoxazibazosilex.weebly.com/uploads/1/3/4/5/134590820/96496e.pdf
    • http://lofitner.buzz/worksheet_4.2_proportions_and_similar_figures_answer_keyewaz4.pdf
    • https://cdn.sqhk.co/woxemevimox/d5jflhb/noob_vs_pro_vs_hacker_2_jailbreak_apk.pdf
    • http://creditstar-kabinet.com/notewuz22yfg.pdf
    • https://cdn.sqhk.co/gituxogud/fjidhhx/furniture_super_discount_san_jose.pdf
    • https://nererudufujodu.weebly.com/uploads/1/3/4/3/134321338/zuzigawefiwo_lodud_vabew_lopuzuvanufasaj.pdf
    • https://zapineri.weebly.com/uploads/1/3/4/7/134707132/8770570.pdf
    • http://moresukko.ru/canon_d200_mark_2_pricecdfb4.pdf
    • http://tameeniraq.com/2012_jeep_grand_cherokee_brake_light_bulbho8n5.pdf
    • https://cdn.sqhk.co/fedelubu/hjPjidy/free_survival_fire_battlegrounds_new_update.pdf
    • http://tradestaroffice.com/airport_handling_manual_ahmjmcw2.pdf
    • https://kidamevu.weebly.com/uploads/1/3/1/4/131437276/jikafawa.pdf
    • https://www.aila2021
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e85625e8-91d5-48c2-95a4-67b7b95d5b39.filesusr.com/ugd/b97a97_9aeaf8a01fad4dd5bc757f974d3aa7bb.pdf?index=true
    • https://d046670e-94b8-4ea2-8efc-69fca9b502c9.filesusr.com/ugd/c0b427_e185fb6e936b4006b5107f10cb4631a5.pdf?index=true
    • https://d8acad56-eb9a-42d1-a06c-a695c5b02328.filesusr.com/ugd/0ad6c7_e7592f259aa44b33b7ac77ede5fa5f85.pdf?index=true
    • https://s3.amazonaws.com/wemazun/broccoli_health_benefits.pdf
    • https://s3.amazonaws.com/gurupixabogivaz/famisefox.pdf
    • https://s3.amazonaws.com/gifojuxaxeva/62178283735.pdf
    • https://s3.amazonaws.com/xonaxevetaf/restraining_orders_from_the_courts_of_heaven_book.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_off0000f0e2.bin
f21f6c5c0180eddcd31a935a0ecf608de59a15060e7d51aafedb8f8af911a4c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E2 5096 bytes
font_01_sfnt_off0001024d.bin
1acb17378baffbfa3e91eec9161a4a4f672dc11021e9ddc56627729834892e7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1024D 11148 bytes

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