Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb7f10b84378052…

MALICIOUS

PDF

41.9 KB Created: 2020-10-03 20:41:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 0b282db0b6690cf9d04b5490ac32dd96 SHA-1: 8cf97405f699c5ff28034bbe1b47c96194cde189 SHA-256: 6bb7f10b84378052e2aaca5f2a852f10fe3a71a1217f9784118c17ce40480bea
152 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at `https://gettraff.ru/strik?keyword=cimatron+e13+full+crack`. The document body and heuristics indicate a lure related to software cracks, likely intended to drive traffic to malicious infrastructure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://gettraff.ru/strik?keyword=cimatron+e13+full+crack In PDF document text
    • https://site-1037054.mozfiles.com/files/1037054/4383287107.pdfIn PDF document text
    • https://site-1039963.mozfiles.com/files/1039963/44028334035.pdfIn PDF document text
    • https://site-1037203.mozfiles.com/files/1037203/limifevij.pdfIn PDF document text
    • https://site-1036803.mozfiles.com/files/1036803/36996941137.pdfIn PDF document text
    • https://site-1036678.mozfiles.com/files/1036678/kirenaxanoxovukipeva.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://cdn.shopify.com/s/files/1/0482/7611/1524/files/witchery_1.7_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1396/2908/files/joxapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1026/7035/files/vavaluxajeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/36020723565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3311/6317/files/jabalose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6845/9681/files/best_order_to_watch_fate_series_reddit.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C25 2868 bytes
SHA-256: 2bdac973bc0490bc1befd293a50a0a9c8580b5305222c27c7d400a5d80116e35
font_01_sfnt_off00006655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6655 5036 bytes
SHA-256: be93262f405cd2671b2d7f0f96339872b95fb5fd8d180f70266ce93bb0e21287
font_02_sfnt_off0000776b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776B 10880 bytes
SHA-256: 3b0ad05bb62d786b9d90f5a2c26c1e0482177fa06320e2d09980a8879a644707
font_03_sfnt_off00009c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C8A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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