Malicious PDF — malware analysis report

Static analysis result for SHA-256 70aba22ed9252842…

MALICIOUS

PDF

96.0 KB Created: 2020-12-10 12:13:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2fe6281719d2ad6e8cd9bd59c90285b8 SHA-1: 1b15d37cbdf501a0236a536c365158f76ae0694e SHA-256: 70aba22ed925284208b6033b9538c63e641b3699060e03bf621546f9f3c8205f
214 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for redirector links and a link farm. The embedded URLs, particularly 'https://traffking.ru/aws?utm_term=react+native+animated+view+transform', suggest an attempt to lure users to malicious sites. The presence of numerous external PDF links further supports the link farm hypothesis, indicating a potential SEO poisoning or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=react+native+animated+view+transform In PDF document text
    • https://tinuxitimo.weebly.com/uploads/1/3/4/7/134748051/vevosewavefudup.pdfIn PDF document text
    • https://loxojewumiv.weebly.com/uploads/1/3/4/6/134651611/504b92d7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/vedosasigaranawovikobaki.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1619768612547ed61873d/t/5fcd67eda87f9f1b19ecc393/1607297006650/84794799354.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc794fa791da6493f6b33f0/t/5fcf923310aae7757175fb95/1607438899577/bodepebomagomalujo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11cd924b06a7eb3006de8/t/5fc6f129c953717e09cb1a3f/1606873399436/assassin_halloween_costume_diy.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc191a61452f90b7fea0e1e/t/5fc2e4fee18c5c478e5b7116/1606608126595/33618270598.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc654295687f52b6ba616b7/t/5fce947b7fcaf32d844ca640/1607373956258/idle_landmark_tycoon_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6752e7f8-2dbf-4f12-94a2-e8b2e4f6ea99/45586145976.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18950b8467722f1d8bdf7/t/5fcf6cc401eaf4591e29bf80/1607429319174/26149912914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/659c9971-e3ce-4e1a-bac4-a8d2ef1674e0/american_craftsman_florida_product_a.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/85060453478.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a4096b97992eb57be95c/t/5fcbc709393ce473563c68ad/1607190282362/best_black_basketball_movies.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F1 5292 bytes
SHA-256: 1de4954d0749f24e90b4268bef5f54edb0ff3d88a3e322faa2c662bec3f09690
font_01_sfnt_off00012aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AEE 2524 bytes
SHA-256: f4d6da7d17d723cda1d7bded583d12b6021ed9b6f25b9e66b1673eacd4bac3e3
font_02_sfnt_off0001362a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1362A 11164 bytes
SHA-256: 6a1a36c2a9312feed479063b3df3ded9f7d8973e53b2d55f00318301c905936c
font_03_sfnt_off00015c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C8E 16340 bytes
SHA-256: 8680b359cba86e2f6e9a78cf8c0f9e51b009e062d62f51157c34cd29f25a410b

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