Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42ce26ab301795b…

MALICIOUS

PDF

82.3 KB Created: 2021-04-20 09:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60747d8a40a63e79a2092831c637c0cb SHA-1: d2290c93813cdcf02f8ec8219492dd9b4e0ee020 SHA-256: c42ce26ab301795b612583978875743a7a1724c7135a4df9bc510a0f35922840
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file. The document body, though heavily obfuscated, contains text that appears to be a lure related to Dungeons & Dragons, suggesting a targeted phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/strik?utm_term=dnd+5e+warforged+cleric+of+the+forge
    • http://letaraluzim.scienceontheweb.net/kinudejezigawisirajewusu.pdf
    • http://cookwellbakewell.com/der_alchimist_deutschcix6x.pdf
    • http://fukerijinexin.mygamesonline.org/how_to_do_a_financial_analysis_of_two_companies.pdf
    • http://bloomwithdeanna.com/kabowixovn0icb.pdf
    • http://mafejaruvoje.sportsontheweb.net/lipuwegaxemuvud.pdf
    • http://dokaxirugik.medianewsonline.com/fupiduk.pdf
    • https://static.s123-cdn-static.com/uploads/4388157/normal_5ffe05679406d.pdf
    • http://tilosag.mypressonline.com/76823319084.pdf
    • https://static.s123-cdn-static.com/uploads/4461511/normal_6002a7aa9ba62.pdf
    • http://trenolgia.buzz/iphone_12_mini_review_gsmarenaungqb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://7133fc40-0b9c-4701-b953-e7fafc934b44.filesusr.com/ugd/70a38d_686d0b279b6c4d32b5b63551d0742e0f.pdf?index=true
    • https://s3.amazonaws.com/belapawerezuju/52211106717.pdf
    • https://eecb1da5-82b7-48ef-90e5-6a20895c07e7.filesusr.com/ugd/88a84f_8a5739757668410999ef2c89113f8400.pdf?index=true
    • https://f62823ea-e863-4eb7-bd7c-e3bac0139ff1.filesusr.com/ugd/8c639a_8a56008aadde47518c04d80cdd14b698.pdf?index=true
    • https://s3.amazonaws.com/vinivuxo/kanazanime.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/haryana_b._ed_exam_date_sheet_2019.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_off0000f4c4.bin
dfc8c5134fbbb51fe07117ff9a695ae467c0bdb740b3b3eddfea4babd4ea3f6c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C4 5108 bytes
font_01_sfnt_off00010633.bin
41d7390285c478f86d5fb180c94611abc9c62d68b10c647c442852e1fb55285d
pdf-font-stream PDF embedded font (sfnt) at offset 0x10633 11888 bytes
font_02_sfnt_off00012e37.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x12E37 4324 bytes