Malicious PDF — malware analysis report

Static analysis result for SHA-256 090ccba99659513d…

MALICIOUS

PDF

127.0 KB Created: 2020-11-20 00:32:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9949f9d616b68f187153e9cd20ca8392 SHA-1: d73fbd26eabd4d52fbf9a3ebc4815ca955d87fb7 SHA-256: 090ccba99659513d1b5be34795263516d108b3bbca84a8e24d0f4bfb39de0d7f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, traffking.ru, which is likely intended to host a malicious payload or redirect the user to a phishing site. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI strongly suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://traffking.ru/123?utm_term=shri+hanuman+chalisa+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5fb52a1f15669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408851/normal_5fb6f0a2e8aa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_5faa8a090c6c3.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/9373e97a-6157-4fdf-83bf-70e857337081/22551234411.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2bbf997-7eb2-4fcb-8bb5-07151846cf98/movavorujujuxim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/416a8213-034c-4de1-a091-5e771e2a1556/final_fantasy_15_complete_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/vutokirusapududupofob.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/leaflet_planning_sheet_ks2.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/principal_entry_plan_interview_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4fc1abc-4ba6-4f47-8084-fd73b7b58232/15086512110.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/pdf_not_printing_on_brother_printer.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0001b6d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B6D5 18696 bytes
SHA-256: 1451a770c240ce64f2a9ab2e1013116f8bd27fc9c78419f6eb7d99200c5c76c8
font_00_sfnt_off0001641f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1641F 3168 bytes
SHA-256: a92fd452d93bbac87ed4432455eaca5c5cec070d88885266f05d4e95ca9d7b49
font_01_sfnt_off00016f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F8A 5500 bytes
SHA-256: 616b2223e34ed4e919629c80c31d248c686842dd7992c3d3d1a55383fc06bcc9
font_02_sfnt_off0001820d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1820D 3772 bytes
SHA-256: b9b49a3c453c53986d7a61d4291ac5a87065d82ff96be43ef0dca6427e6dc540
font_03_sfnt_off00018db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18DB1 13528 bytes
SHA-256: b5da57ad5f4d9a1dca85b25977dac03045114d3a06b546dda1b75971eb520474

Open this report in the interactive analyzer, or submit your own file for analysis.