Malicious PDF — malware analysis report

Static analysis result for SHA-256 3057d20021836e61…

MALICIOUS

PDF

76.9 KB Created: 2020-12-26 01:47:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 725172ed181af0bb35f04381bc25493c SHA-1: 2613b71765eccfcda6c0f14490d8e7863344cd14 SHA-256: 3057d20021836e61e7c931f52a182ee46450116ff7d4894dc377c201524ebf0a
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one critical heuristic identifying it as a malicious redirector. The primary link directs to 'ggtraff.ru', which is known malicious infrastructure. The document body, though heavily obfuscated, contains keywords related to 'minecraft bedrock edition windows 10', suggesting a lure to attract users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ggtraff.ru/aws?utm_term=minecraft+bedrock+edition++windows+10 In PDF document text
    • https://kezodedekupamo.weebly.com/uploads/1/3/4/6/134605888/naguvun.pdfIn PDF document text
    • https://cdn.sqhk.co/sulojumi/fjegjqa/sparkling_mineral_water_vs_regular_water.pdfIn PDF document text
    • https://bozozojiretul.weebly.com/uploads/1/3/4/7/134770512/5877078.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/F2Kkhhf/floor_is_lava_netflix_sign_up_age.pdfIn PDF document text
    • https://cdn.sqhk.co/vawikepaf/RJpVLnZ/66073488296.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482418/normal_5fbdf95db1021.pdfIn PDF document text
    • https://cdn.sqhk.co/nosuterib/jevhgdP/slither._io_mods_zoom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/267e346d-13b5-40bc-930b-dc065108ee06/pedirinubo.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/45115856094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/027131da-74c9-4722-9ad7-3e75f9619371/zizojo.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/zisetaxuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/92595715786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf9929bf-4d0c-40a8-9971-12c229789026/83919006741.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/vorurigamefozowixesilezeb.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_off0000ead8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD8 5476 bytes
SHA-256: e2d62b7493c9e141d7645d1ae0b72ad5cdb9d7baea97d376b1de81ea712abb40
font_01_sfnt_off0000fdac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAC 11960 bytes
SHA-256: 0bf5296d62476e30ccb1a45cb5c9b69451ede42220000595aa61a6827d09c715

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