Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0b29a3f1dae1bc…

MALICIOUS

PDF

74.8 KB Created: 2021-03-24 12:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c1d26ae941240ddc87f991f7f89bcee SHA-1: 470b74d1bc439930272c9bc0a14b0c4381eded48 SHA-256: 2a0b29a3f1dae1bc339e5eb457014a126c178606101f28c8a7a449193025efc1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, identified by ClamAV and ML classifiers as malicious. The document body, though heavily obfuscated, appears to be a lure, likely intended to direct the user to the malicious URL for phishing or malware delivery. The presence of an external URI and the high ML score strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://botokaw.ru/wix?keyword=logitech+g19+application
    • http://tubipiguposazi.22web.org/68265690495.pdf
    • http://dufifudusimube.mygamesonline.org/how_much_do_g_league_players_make.pdf
    • https://dinijituwit.weebly.com/uploads/1/3/1/6/131606252/991980.pdf
    • https://static.s123-cdn-static.com/uploads/4414498/normal_5fe356d73807a.pdf
    • https://cdn-cms.f-static.net/uploads/4417214/normal_603e44e8de9f2.pdf
    • https://cdn-cms.f-static.net/uploads/4374685/normal_601094f61ea06.pdf
    • https://vifazadaza.weebly.com/uploads/1/3/4/8/134883600/1231489.pdf
    • https://xekekulok.weebly.com/uploads/1/3/1/8/131857590/fovagunat_kegugajobixeri.pdf
    • https://nabudurokaralek.weebly.com/uploads/1/3/4/5/134576841/1a06b3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nukuxora.epizy.com/pijilajiluvilonadu.pdf
    • http://jifagul.rf.gd/78661288664.pdf
    • http://rojaxenutu.rf.gd/fopefiburuduleduzev.pdf
    • http://migolow.epizy.com/85509320076.pdf
    • http://novogizeboje.myartsonline.com/casio_ctk_700_price_philippines.pdf
    • http://josotemasafu.rf.gd/free_chicago_bulls_wallpaper_s.pdf
    • http://wojodiguf.rf.gd/dunkin_donuts_hot_coffee_sizes_ounces.pdf
    • http://jitetiwax.rf.gd/9117744278.pdf
    • http://vabumoligibifa.rf.gd/padivomakoz.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_off0000e307.bin
fad67498e8c72d0a5d4b1941c8a1892144564838d0155aa270a416ece24a761e
pdf-font-stream PDF embedded font (sfnt) at offset 0xE307 5072 bytes
font_01_sfnt_off0000f45b.bin
5463a021f8933cb018b7513feafb402ffec444b7d138a806edef98c7995dd817
pdf-font-stream PDF embedded font (sfnt) at offset 0xF45B 12080 bytes