Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab60216b05665d91…

MALICIOUS

PDF

78.3 KB Created: 2021-03-10 23:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1b79dead6c11650ddfa6cc5dcce3cfa SHA-1: 1d2d0e027e8129699c4a0a5382d573095fc91757 SHA-256: ab60216b05665d917d08ea7e7a91d92dbe6f3a32802be7aebd7267fe6fffd8f9
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'resalured.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to a baseball schedule.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/wix?keyword=bright+house+field+baseball+schedule
    • https://static.s123-cdn-static.com/uploads/4379603/normal_5ff20fe47d93a.pdf
    • https://cdn.sqhk.co/tovisegag/ijjgmij/nudowafatukolegumonugara.pdf
    • https://static.s123-cdn-static.com/uploads/4383451/normal_5fe1354e5617d.pdf
    • http://wusapibixabupak.iblogger.org/55653258908.pdf
    • https://cdn-cms.f-static.net/uploads/4456686/normal_600fc72064149.pdf
    • https://cdn.sqhk.co/tanemurad/hjjDgeV/school_of_dragons_ios_gameplay.pdf
    • https://static.s123-cdn-static.com/uploads/4383445/normal_5fcce965d8e59.pdf
    • http://puvepum.getenjoyment.net/how_did_agricultural_revolution_change_peoples_lives.pdf
    • https://static.s123-cdn-static.com/uploads/4407749/normal_5fee41e989095.pdf
    • https://static.s123-cdn-static.com/uploads/4416512/normal_5ff6a528c2ba0.pdf
    • https://cdn-cms.f-static.net/uploads/4401691/normal_5fe9ce08dc519.pdf
    • https://cdn-cms.f-static.net/uploads/4420767/normal_602882aac7b39.pdf
    • http://galabogenezoso.getenjoyment.net/colleges_with_interior_design_majors_in_virginia.pdf
    • https://cdn.sqhk.co/radofufalam/iejaeLN/dark_side_of_the_moon_paul_kelly_lyrics.pdf
    • https://static.s123-cdn-static.com/uploads/4464852/normal_5ffac43314a09.pdf
    • https://cdn-cms.f-static.net/uploads/4366395/normal_60238008b839a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/piwupevivotixi/51288770827.pdf
    • http://vajevus.rf.gd/craftsman_16_chainsaw_fuel_line_diagram.pdf
    • https://s3.amazonaws.com/bofake/94028870043.pdf
    • https://s3.amazonaws.com/zarelusipofox/dekokadi.pdf
    • http://libejejizu.epizy.com/building_foundation_plan.pdf
    • http://likalesiwala.epizy.com/chipmunks_tamil_songs_free.pdf
    • http://fekobovovexi.epizy.com/cyanide_and_happiness_card_game.pdf
    • http://pekafujojef.onlinewebshop.net/beretta_a300_outlander_semi-automatic_shotgun_reviews.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_off0000f5e8.bin
2c39393f9d903bc7673d4d6aba48830e1ac048fbd97e64ba601f1e1685e0ba51		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E8 5472 bytes
font_01_sfnt_off00010881.bin
4c3aa08c52d9ced07f458c21117eb23d9b07f5500ada1eca4976d25d9cf53616		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10881 10308 bytes

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