Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f92a6f47d28727…

MALICIOUS

PDF

76.8 KB Created: 2021-01-08 07:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: db28944da560d5944604f128f218ace0 SHA-1: 735858bdc1babd0145b2771886f13427668c556a SHA-256: 69f92a6f47d2872759643175e3cf78c03467b3871eced6a7b9312dd788839d30
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 'ggtraff.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL suggests an attempt to lure the user to a compromised site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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?utm_term=android+10+release+date+oneplus+6t In PDF document text
    • https://pufotawimudob.weebly.com/uploads/1/3/4/3/134380049/gupuxolip-sokozimadofaj-muvosun-wupijebawunakot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5f9c3a8e2f1c3.pdfIn PDF document text
    • https://mevonupimiluge.weebly.com/uploads/1/3/4/5/134527198/xowiw_zuzakob_roribexaxusuxez_munojanelaju.pdfIn PDF document text
    • https://jawuvufos.weebly.com/uploads/1/3/4/8/134856807/pulusezivadazonu.pdfIn PDF document text
    • https://mawebugejememed.weebly.com/uploads/1/3/4/5/134599942/9622493dcf05.pdfIn PDF document text
    • https://kafunonedejo.weebly.com/uploads/1/3/4/6/134662894/jezebat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/4eedaede-e6dc-4c1d-874d-d8338bdd62f5/99717607903.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62fecb2b-62a3-45ea-9f2a-527230c460f7/wadixomukiwogebabajamap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a1dbf8d-3aea-4a3f-b3bc-46375b9b6db6/jenojuxasiboxubipewurosuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fe54121-cee4-4f0c-8d27-25b4f3aba87c/12v_air_pump_for_inflatables.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f10b1330-1059-471e-b6f4-f9ecf844b89b/pemuti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/452cbcce-00f4-4df8-bba2-263de5fcee04/divodapugoxesob.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D4 5172 bytes
SHA-256: 2bd7e87ece5c6b63f692288c47970370bd6ae98df220f0f011362b75a22d4f2c
font_01_sfnt_off0000f36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36A 10704 bytes
SHA-256: d0be86d86fe34e41c435fe1183a8e5961615a367645e43e9f7e082d79ce42928
font_02_sfnt_off0001180b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1180B 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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