Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e306d8c6d0d128…

MALICIOUS

PDF

107.5 KB Created: 2020-08-15 05:55:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94f2519b23695c7e2653912528ec3375 SHA-1: 1e4a05bd4e60344037ca5ea1a4979b8e1cdd058f SHA-256: c6e306d8c6d0d1282bfe85945e7aa8599282ba92b0779055d5693d9e921827e0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, a technique often used for SEO poisoning to improve search engine rankings. One of the primary links, 'https://ttraff.cc/pify?keyword=ascii+code+chart+pdf', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure under the guise of providing an ASCII code chart.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=ascii+code+chart+pdf In PDF document text
    • http://files.mostlyuppermidwestairchecks.com/uploads/1/3/2/7/132740501/787a436c.pdfIn PDF document text
    • http://files.leasparlor.com/uploads/1/3/1/0/131070674/tegapor.pdfIn PDF document text
    • http://files.sustainable-movement.com/uploads/1/3/0/7/130739084/9359756.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/1/0428/6146/1670/files/guvivadadepivava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/jikomajijafizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/81965585742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/dulazurolif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0626/files/napinekojabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/41698819012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66083684812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/zeneruzanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/gta5_ps3_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/fabilun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/21422979405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/lojagojuvokawotivenewofu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F63 5200 bytes
SHA-256: 81dd539e790c2c1fadcf1402e050cc36ccfb8c1b49b43cdd9cb60f8242444f28
font_01_sfnt_off00014107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14107 14064 bytes
SHA-256: 19e88e7aaf4c760e51d0bc63789bdf67ec1730f11dd7518495f5afaf50e0115c
font_02_sfnt_off00016ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16EE3 16200 bytes
SHA-256: 9b3f78461cd92b54123a7ccbd9c01482e975fa0784255d970b97fcf231cc3d16
font_03_sfnt_off0001841b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1841B 13500 bytes
SHA-256: a1721dac5141efbdb2218075ceb166cf265b78c2199db072f823285ecc5642cf