Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac0e03b37509664f…

MALICIOUS

PDF

49.5 KB Created: 2020-10-26 15:07:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2dd74ed25d300e749c4be4d5d1688043 SHA-1: d2ee20ca4841764a1db8984024002c2363d8e634 SHA-256: ac0e03b37509664f0d78001e8bb0d1e78988e3021cbb1d9098d77eff1df14b09
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://gettraff.ru/aws?keyword=c%25E1%25BA%25AFt+trang+trong+pdf+mi%25E1%25BB%2585n+ph%25C3%25AD In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378623/normal_5f8a05d9564b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369629/normal_5f8a5d3978d69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404523/normal_5f925b75b8c15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/atlas_of_amputations_and_limb_deficiencies_3rd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/dahua_camera_price_list.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/37511690929.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/accursed_share_bataille.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/94854972965.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/16664445044.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/beowulf_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8392/6171/files/app_to_fix_red_eye_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4456/8220/files/95172236204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8537/0022/files/64462309334.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b2b834-8340-43ab-8417-4defcc9f43da/liguge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf6994d8-87e1-47f9-ae8d-39d3478ef1d1/929641741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93097eb2-6ed9-4c68-9fa3-df5a2db041ec/nebadonidebiwikugav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4801a3d0-084c-4d54-a3ec-e13abad84e4d/85999653569.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac190aee-359c-4d8c-8eda-120cafa40399/devious_people_clothing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86b3273d-d896-42fd-a40d-66c58846adac/jidurediwetoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b3316a3-9fac-46f8-a9bc-2facae6d7315/32289029987.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.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8D 5756 bytes
SHA-256: 6e772054a91ddaf8ba28ef29db417a817e7385713075e9422f308b7681b0f012
font_01_sfnt_off00006d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D20 6008 bytes
SHA-256: 851e951b6d00e65a6b971457e3d3b9ce4377e6c47ec951f933f52080338895ef
font_02_sfnt_off00007c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 10444 bytes
SHA-256: e5a77b60253b7ed99793f945a891e0a67b644c4e3752ac88726ed529a6d08a02
font_03_sfnt_off0000a06e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA06E 16376 bytes
SHA-256: bc7e3f6831be34686de02ce7be2a06b9f1fa2b1a298201cd6e3dc3baf4672bf7

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