Malicious PDF — malware analysis report

Static analysis result for SHA-256 26b308e17461b8e1…

MALICIOUS

PDF

68.6 KB Created: 2021-05-27 15:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ba349de21b5769432cd6241715fb73a SHA-1: b13c3246b5e12d9108c88ead6b20a05f562b53b8 SHA-256: 26b308e17461b8e165c22550fdeb1c36c29834d337ba03a4a02007ae71b5f261
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains embedded URLs that likely lead to further malicious content or exploits. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest a phishing attempt designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf0361b2ad---morizovedowe.pdf
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/9d97a03dcbe6fe04f24dfd462362d23f/36842404895.pdf
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/dbjsnclh0ufm2a8jrlsjkoeef6/razisefuzuluzavizedataz.pdf
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/s970s7tb1l3ds911d8s0jrod22/nesovotu.pdf
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2b1169c05---zagodezebujo.pdf
    • http://anhuicrew.com/upload_fck/file/2021-5-12/20210512120517744964.pdf
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8fafd8854---tizedomupuja.pdf
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071df7716473---puduxowakot.pdf
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/52793ca90d424f209437ac2ea2f00233/voduzudixapojijisajaxeza.pdf
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/e57d1900ea83de3a567ce50458ced9ee/tepuwati.pdf
    • http://amandamaitland.com/images/file/kamapegelo.pdf
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160748058c12e8---xufisopat.pdf
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f732854192---wudekatez.pdf
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071375a027ff---bavapijiroguwexuf.pdf
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac4f8bcab2---71035116758.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=what+is+the+importance+of+electrical+symbols
    • 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_off0000d0f6.bin
d6be2a09b74ee654d45e25bf73afe90d5003971f419beb68dbc50edd81d5ede6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F6 5508 bytes
font_01_sfnt_off0000e397.bin
dcf695f605ee692b065bec4a1217ac446b3da796b2cd94781411e471db1b56ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE397 9992 bytes

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