Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac6346c9a2fcf04e…

MALICIOUS

PDF

75.3 KB Created: 2020-11-13 17:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: cdeb2d59caa2623f2d4b2d13187d0890 SHA-1: 1c599b7db3eedcd6fcc832241eb5418d692644a7 SHA-256: ac6346c9a2fcf04e0149521ff585037774b3a8aac1f1e5c86eb2a6c6be8296c9
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/123?utm_term=dell+vostro+260+cpu+upgrade'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL within the document body indicates an attempt to lure the user to a compromised site.

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
  • 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/123?utm_term=dell+vostro+260+cpu+upgrade In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_5f8d21f52a008.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388165/normal_5fa4189838fd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485156/normal_5fa8c6fd330e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374689/normal_5f9477597e778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379486/normal_5f8a4be3808c9.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/cc57a568-cce4-4194-9ffb-f1f8bb140bcc/acmarket_apk_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5df0244-84f0-43bc-94d1-81b409f05e73/creative_aurvana_live_rtings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44e8239d-306c-42bd-9bdd-54d6e9daad25/dagelebudo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1035ef89-c128-484f-8b41-db5b2224361c/designing_your_life_bill_burnett_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pukasojalu/niperapulubegewujizozanik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8049371-bdb0-4a76-a627-53b3d467fab9/peugeot_307_haynes_manual_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/best_self_guided_bike_tours_in_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/a_raisin_in_the_sun_act_1_scene_1_setting.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/68251057860.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_off0000e7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BC 5728 bytes
SHA-256: 8b80a6f273dffef6c3b211403624f88fd5c64f76fe440709369d2ab0f31b81f0
font_01_sfnt_off0000fb52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB52 10864 bytes
SHA-256: 2853455e9336c4f2d6060fa576531c3ab31711c8693e9141bcc9c1f63d6ec50e

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