Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a67b2b2423f2da…

MALICIOUS

PDF

41.4 KB Created: 2020-08-01 15:21:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b109208416f88a39e983f2513b79855d SHA-1: 6f89dc800cdca2c6b3340b8bd8f954ef3e18faa5 SHA-256: f7a67b2b2423f2dab67a42dc58ee7031c27f2b66cad84714d4429c2b04b91246
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a large number of embedded URLs, many of which point to a link farm hosted on Shopify. One of these URLs, 'https://ttraff.com/pify?keyword=post+request+curl', is identified as a malicious redirector. The presence of a visible LOLBin command execution instruction suggests that the document is designed to execute commands or download further payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=post+request+curl In PDF document text
    • http://files.gtdphil.org/uploads/1/3/0/9/130969438/4623576.pdfIn PDF document text
    • http://files.sotilloinsurance.com/uploads/1/3/2/6/132682806/18ea4563.pdfIn PDF document text
    • http://files.wendywangauthor.com/uploads/1/3/0/7/130776821/a773555f5ac2.pdfIn PDF document text
    • http://files.lauraspreciouspomeranians.com/uploads/1/3/1/3/131379615/8733610.pdfIn PDF document text
    • http://files.halloweencity.ca/uploads/1/3/1/3/131380345/wafezi.pdfIn PDF document text
    • https://cdn.shopIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1137/4230/files/583924943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23281911610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/77214252917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9588/2918/files/2975804854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/157943310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7974/5192/files/pifosajilugivuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6938/files/6492285900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9648/7576/files/mojaxokaxejeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/vujuluzogevekufabufesumif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/38057951518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6689/files/85766377223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000595b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x595B 4708 bytes
SHA-256: b70093540563ac612a4c630d9dd705c3d686515b3261d9dbf9e0f3ea4f04bc1a
font_01_sfnt_off00006975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6975 15084 bytes
SHA-256: 228540d3b6ff5f0c99a401201545d16ad7ca2adfd51616ed23ea51a9018cb038