Malicious PDF — malware analysis report

Static analysis result for SHA-256 4647529d0574477b…

MALICIOUS

PDF

70.7 KB Created: 2021-03-02 15:31:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b2a27984d6aafeb68ef081080a23fa77 SHA-1: 9a3a1fad471778766e9b847eae3e14adc3c005c2 SHA-256: 4647529d0574477b9700ecc7e7f8cdf96ee098dce9cdd4851c66cbc25804de2f
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a popular coffee chain, directing the user to a suspicious URL. ClamAV and ML classifiers strongly indicate maliciousness, specifically flagging it as a phishing trojan. The embedded URL is likely part of a phishing campaign designed to redirect users to malicious content.

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 https://kuzutuzo.ru/strik?utm_term=what+is+americano+at+dunkin+donuts PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4458840/normal_5ffb865c9f5d8.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/UiihhIZ/7590197898.pdfIn PDF document text
    • http://erogancolumbia.site/shark_model_nv501_31_partsn01s6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416494/normal_5ffd7c708fa77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365591/normal_6004f12214160.pdfIn PDF document text
    • https://cdn.sqhk.co/gunumiku/Uc45jbP/volafewufifejumokekuraj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369183/normal_5fc674f012d9d.pdfIn PDF document text
    • http://oyuncuxx.com/howard_anton_linear_algebra_11th_edition_solutionh5f41.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486983/normal_5fcaa21904fce.pdfIn PDF document text
    • https://cdn.sqhk.co/folukize/dEidihZ/fillable_character_sheet_pathfinder_2e.pdfIn PDF document text
    • https://cdn.sqhk.co/fomezawelud/uejjbic/mipogujidawafotewomos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418385/normal_5fe19210f266d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444874/normal_5fdc122e02515.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454809/normal_5fe2b490cce9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413244/normal_5fffd025b2726.pdfIn PDF document text
    • http://pannochki-art.com/94769188939s4dat.pdfIn PDF document text
    • http://gratoramaa.website/internal_combustion_engine_inventor_codycrossefvin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://loturorilod.rf.gd/firun.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CE 5224 bytes
SHA-256: 877e6e83392ca8a8251b831509b7116301c417cec481735d0cfbee2828bb2eb5
font_01_sfnt_off0000e974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE974 10688 bytes
SHA-256: 579882fdf91d2c488184dd651fe8d6ea3a8bd1b247d9b9167485ecf4f180da4e

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