Malicious PDF — malware analysis report

Static analysis result for SHA-256 801b268cd5acc89e…

MALICIOUS

PDF

70.3 KB Created: 2021-03-30 19:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0096f684880097a678ab0a382bf0bff SHA-1: a4d340016e49808796745933e43a34ff28f843b4 SHA-256: 801b268cd5acc89e95e096bd391d9f5a9cab3e7d7cab46e573332c2f75b850fd
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to direct users to a phishing site. No scripts were extracted, but the presence of the malicious URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dafemum.ru/wix?keyword=punctuating+dialogue+practice+worksheet
    • http://alisabor.design/cuentos_de_eva_luna_chapter_summary5xyah.pdf
    • https://xidokuwu.weebly.com/uploads/1/3/1/4/131453793/357f9686e09479.pdf
    • http://proita.fun/limesadaxojuxixuladajadilsbhjf.pdf
    • http://getplafond.xyz/will_there_be_a_season_4_of_sword_art_online_on_netflixuew4l.pdf
    • http://goldstein.berlin/43746706670abxr2.pdf
    • http://creamwalls.space/8th_grade_math_test9sw1z.pdf
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/4336158.pdf
    • http://wonder-ita.fun/rejotesilitaviwefamodutafj1z3.pdf
    • http://muldwych.com/dojipirebirutuduwaxop4010b.pdf
    • http://talkme-news.info/49460675101l14ex.pdf
    • https://xunilizavokuniz.weebly.com/uploads/1/3/6/0/136050149/bivaxavoga_zemaxisof.pdf
    • http://shop-you.xyz/somizorajelizeremgb1lt.pdf
    • http://zefefiwova.medianewsonline.com/7_wonders_of_the_world_list.pdf
    • http://onlyforyou.space/vapisibakaxaretuxoxataxezmi5vr.pdf
    • http://crysety.xyz/42331556659ricgl.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fufudaloxola.onlinewebshop.net/taxujid.pdf
    • https://s3.amazonaws.com/lonozote/93521170851.pdf
    • https://s3.amazonaws.com/vobuturinivi/moxafonetujidibemegegoxal.pdf
    • https://s3.amazonaws.com/somamere/40321285268.pdf
    • https://s3.amazonaws.com/zuvovoxigumuz/23374525502.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_off0000c66e.bin
1d675583195d5163a4ac8533ef4877bd45a0c7b7bda2f2efde097504964f8338
pdf-font-stream PDF embedded font (sfnt) at offset 0xC66E 5376 bytes
font_01_sfnt_off0000d8af.bin
962f441a52c7f50b1b866897c1f7f6cd5dba4a376dcae1bb5c7a47c118f22ccc
pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AF 10852 bytes
font_02_sfnt_off0000fd7d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7D 4324 bytes