Malicious PDF — malware analysis report

Static analysis result for SHA-256 74baddf9c4ad4edf…

MALICIOUS

PDF

75.8 KB Created: 2021-03-23 10:11:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19f3d615a8cf8e3c9d426f77b73c0c4e SHA-1: de41751fff09b62a1010f9a0fbcfd99dcb456e4f SHA-256: 74baddf9c4ad4edf5897dc8155b59b0aaa59083c0aa6c2e364675349e7efc7ec
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to programming a garage door opener, likely to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the high ML score indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • 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://resalured.ru/strik?utm_term=how+to+program+travel+on+chamberlain+garage+door+opener
    • http://reduslimitalia-oficial.site/simply_keto_simple_recipes_with_ground_beefwz3qx.pdf
    • https://vataripisak.weebly.com/uploads/1/3/4/6/134600115/7c3dae.pdf
    • https://cdn.sqhk.co/jiwosowo/Pijidq5/50886012952.pdf
    • https://cdn.sqhk.co/modonasuje/fAXRfjg/xikojejub.pdf
    • http://italdom.fun/masifisusarajusuvuzovcq8a.pdf
    • http://tuwukadinem.mygamesonline.org/who_voted_against_obamacare.pdf
    • http://rumigiwataj.getenjoyment.net/85793433873.pdf
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/844396.pdf
    • http://bnatural.space/drum_simulator_pc_freecwe3d.pdf
    • https://cdn.sqhk.co/zivuputid/jejdgiV/idle_dragon_merge_the_dragons_apk.pdf
    • http://1xbets-regs.site/polerusez3i23s.pdf
    • http://domavera.ru/83307210499oyvf8.pdf
    • https://migobagola.weebly.com/uploads/1/3/4/8/134874333/banitarixobep.pdf
    • https://cdn.sqhk.co/vaminika/6Egcqjg/rolling_stones_magazine_albums_ranked.pdf
    • http://dazavaluk.mygamesonline.org/42522683528.pdf
    • https://cdn.sqhk.co/sivadapexiri/x1heift/viwarimijejonusin.pdf
    • http://marketop.club/128266176630r7ad.pdf
    • https://lonitavow.weebly.com/uploads/1/3/4/3/134355974/68e979ba75.pdf
    • http://wepisoja.mypressonline.com/69442858815.pdf
    • http://raisinshub.pro/redoxupikixonuvezhuqy.pdf
    • https://xoburorabusu.weebly.com/uploads/1/3/0/7/130738623/5d1e6573fbe80e.pdf
    • http://tafugegajotu.mygamesonline.org/71773393344.pdf
    • http://www.coventryfirst.co.uk/data/images/new_jaguar_logo__2_.jpg
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/fulazelof/kavixezok.pdf
    • https://s3.amazonaws.com/zizene/what_does_gnosticism_challenge.pdf
    • https://s3.amazonaws.com/kitakilesa/oracle_database_administrator_jobs_in_pune.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df54.bin
14de3a8f6c06252efd196bed789727cf2ff4a37b7936c298cb8a31be93f1fb12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF54 5352 bytes
font_01_sfnt_off0000f15b.bin
f9cf9bc5ac671ab362306cac4f131352821561cc2409d2443c3e18cb73d69d40		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF15B 9752 bytes
font_02_sfnt_off000112b1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112B1 4324 bytes

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