Malicious PDF — malware analysis report

Static analysis result for SHA-256 33b37624a399397b…

MALICIOUS

PDF

68.8 KB Created: 2020-10-27 23:57:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2006c95a748eb5f6662855337c7ec91c SHA-1: 174f6a6ffed6e05f9ee8bfa5e0a34323f47be0bb SHA-256: 33b37624a399397bc5a77f1c7d34295afa8fc6f21b17686622891892c39530ab
152 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 embeds a large number of external links characteristic of an SEO link farm and 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 0.9218

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.
  • 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.
  • 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/strik?keyword=harvest+moon+tree+of+tranquility+crop+guide In 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://cdn.shopify.com/s/files/1/0500/4682/8704/files/41356223642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/7107/7027/files/clash_for_dawn_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0662/3384/files/96580695588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/molititogelozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/cells_to_organisms_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5088/4008/files/convert_to_word_arabic_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1673/0799/files/romanticismo_arte_riassunto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8380/1784/files/votiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3165/3273/files/82353236374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3296/files/bleach_opening_2_lyrics_romaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3707/2801/files/wezikojekarubosegirulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6544/1445/files/will_hayden_verdict.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/lerubeliwoxidel.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/calidad_total_y_productividad_4ta_edicion.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/binary_numbers_operations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/584944a7-1ef3-44e3-8fc6-c17e98279ad8/163642018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87e102ab-045e-416f-8232-1536c62eb653/40731131065.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbfd9a4f-924a-418e-809e-e79f301dc5bf/luwofovebo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c8f97d8-d516-4ff6-9db2-9e01134a0b16/jijiromotenitegigabubolag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e4b0b4e-b9df-425c-9b14-97a6bc6c33f9/kixudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4409/7176/files/72062549525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6153/7689/files/download_vysor_apk_pure.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC91F 5608 bytes
SHA-256: d3ae71cb21659259424b95b7dc285ac00999549a80ea62855d5db9fce548869b
font_01_sfnt_off0000dc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC19 10780 bytes
SHA-256: 9fec48c85526923f6d12f460bb3f6a3b3a3ab5ae395b4d2b7936be837252bd2f
font_02_sfnt_off000100e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E5 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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