Malicious PDF — malware analysis report

Static analysis result for SHA-256 7718e85dc7dd8687…

MALICIOUS

PDF

102.2 KB Created: 2021-01-08 16:32:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f2667d549d83350e8ef9e23c26466c56 SHA-1: 2de11eb3905b401a4f1c6d04e769097e1a6fc463 SHA-256: 7718e85dc7dd8687be2bba4d44fe809ec12834cc18459797c02a826efc266f08
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traffking.ru, which is indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support this assessment. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffking.ru/aws?utm_term=task+7+controlled+practice+answer+key+brainly In PDF document text
    • https://nutarubanamu.weebly.com/uploads/1/3/4/5/134528768/latixupinonapev-suzenibe-botewudusidi-powusu.pdfIn PDF document text
    • https://cdn.sqhk.co/visunexabore/figQiet/up_board_class_10_english_solutions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403946/normal_5fd11a0d99cc8.pdfIn PDF document text
    • https://kaposabebozof.weebly.com/uploads/1/3/4/4/134466843/057ce98d8f081.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393791/normal_5f9f59b3ec165.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479718/normal_5fd31b11098bf.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/d7026ec8-4b1e-47a8-b636-8f4360318395/zixekobokuwifuxujiped.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73ec60d9-32ab-43e6-b943-3072303a7fa6/stranger_things_season_4_hopper_alive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71da31ea-5da8-438e-bc52-509c1b4def9a/learn_to_fly_hacked_unblocked_google_sites.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76865a65-b929-4e8e-a3f1-49e5822e5b0b/pop_sonnets_call_me_maybe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6ced34a-14aa-4763-a76d-fbfea1f37f86/northville_public_schools_employment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/821d34d6-e59a-4aa8-86ad-6e91a2f5872c/stone_sour_wicked_game_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c7cc121-bb7c-43ef-8ef2-be2857fb318b/4993954288.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_off0001424e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1424E 5284 bytes
SHA-256: dbd6205316de793f5be142661061c7b5041553b6b6315eafadea7e1175c47bac
font_01_sfnt_off0001545c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1545C 12100 bytes
SHA-256: 2af10aa73ceefafb6ed677d841fbc2babed235e17e8b67f717d5d8901ee0057c
font_02_sfnt_off00017d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D67 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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