Malicious PDF — malware analysis report

Static analysis result for SHA-256 22149d348a1f5f8e…

MALICIOUS

PDF

59.0 KB Created: 2020-08-22 08:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4921b621b0b917b1286367de770efefe SHA-1: 320fec9bffad9dc970b8a17c8fa3c0838b5dedd8 SHA-256: 22149d348a1f5f8ea73fc3442b5f6e6e97b911f06475c61907292b4860bd94da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=reportagem+dftv+2+edi%25C3%25A7%25C3%25A3o+hoje'. The document body, though heavily obfuscated, contains this URL and appears to be a lure for a news report. The file also contains a PDF link farm heuristic, indicating it's part of a larger SEO poisoning effort. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.com/pify?keyword=reportagem+dftv+2+edi%25C3%25A7%25C3%25A3o+hoje In PDF document text
    • http://files.funkbusterbaits.com/uploads/1/3/2/7/132740949/rulamozemurusu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/1761301318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/taxunokijufiputigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9174/6977/files/63238024341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5203/9328/files/7800381941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/fibebosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4346/9974/files/rixadopadigogagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/tarexukiv.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B52 6476 bytes
SHA-256: 5c96381b2956ba85bdc606e02b4bc67750563a6a571ffb0d67253edb336a5a64
font_01_sfnt_off00005b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B27 3348 bytes
SHA-256: 4b64d5e65ca3d38908727627ab69d513cc2281093e606a1283bed194495d10c6
font_02_sfnt_off0000669a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669A 6020 bytes
SHA-256: bf8ebb685f7a497bd3b4c2940a46451dc401e4614fa62769aef28756d9af0502
font_03_sfnt_off00007a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A79 12468 bytes
SHA-256: feab166b6d66737a01ff3890abc06ef223020ad9662d10b3ac27da85198b8d63
font_04_sfnt_off00009f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F02 11152 bytes
SHA-256: 70887d8a705bca6fdea8f19cb26507004f2e8c4a5d5e15d35b1e0e432d6ba5f1
font_05_sfnt_off0000c534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC534 16620 bytes
SHA-256: e55a823916cc0825c0a35764fb677e2f4df6d4af7e3d961e35c985c356eeb250

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