Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6404f190c671bc5…

MALICIOUS

PDF

46.2 KB Created: 2020-11-06 01:35:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 22b2441baa7fcffb8e47cbb16e0b2382 SHA-1: 5fae585de555241b76cc426e80cd1f761f77d1cd SHA-256: f6404f190c671bc503973ddc1c271dba4ae5d06399bb3f5a38cdccc938ba7ee0
94 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a link to a known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/aws?keyword=range+guide+p2p+osrs' is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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?keyword=range+guide+p2p+osrs In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_5f9390eb9c251.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408479/normal_5f9a62dab0296.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385617/normal_5f9083e72990e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5f912cebe8e75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382772/normal_5f95586fcdca9.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/9070d0dc-e54b-407d-a605-37a459d672ca/polimopenarolewufedubumu.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/waking_up_white.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/78473194479.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/32528939296.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/90400405803.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/lavadora_ariston_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/zivizamapagasokidewuka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44858705-bb57-45df-9a4f-b58c5d3ff5c2/percy_jackson_and_the_greek_gods_audiobook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e767c458-4c73-455b-8372-f226b10642f6/jizodifazekotazi.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/christopher_sullivan_law.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33d9f8e2-2729-4e6a-8148-8386bae97111/proform_995_manual.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_off0000760a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760A 5232 bytes
SHA-256: 1637bb2be755874824f3c77084c32ef782574c0aafe9af68a4ec82ca5a09c6dd
font_01_sfnt_off000087e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E9 10588 bytes
SHA-256: 5010a4e4720aa0a64125ebda3f7a354f311ad3814937026d5f4b91c4dd467390

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