Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c12806e5c48209…

MALICIOUS

PDF

47.8 KB Created: 2020-08-30 04:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72b6422fdffbb47906736949e7c39c52 SHA-1: 2bf7d6b095d52aff70a564a1d3c4a16b0a4d3d04 SHA-256: e7c12806e5c482094a1ffb0a1dfcab12e8d188be1905c1c7b2a39a101b3b003d
194 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, which is a strong indicator of malicious intent. The document body text, though heavily obfuscated, contains the phrase 'bully mods pc download' and the redirector URL, suggesting a lure for potentially unwanted or malicious software. The presence of a large number of external PDF links further supports the classification as a link farm, often used to distribute malware or phish for credentials.

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/wix?keyword=bully+mods+pc+download In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/83e24f_b862ce33af5a481ca8e432bd9649205a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/784815_777a5ca7f38b43628f71c898a4b565c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e3ff21_d98ae9ce05de425bb57a73b8eaff5bb4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c63dba_fe80d35630a84956bb3c407ee625c12b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_46727d6a9e3a44e880657e6f3428764c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/mugipepubuzeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/nitro_keygen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1271/8498/files/97422254451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lokilus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/ider_fr_en_Julspel.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/57c819_e82eca37ae8d4374b72557bb770fc853.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_509b650c23484f6882526e0da4e7be6d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c33cdb_7d56bf801a5448799cd043b394d04197.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/33a16d_edd407c6aaae44a1b30a3f65deb9be16.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/neretidesalefadim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/vosixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2534/0328/files/99669699264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/vafibutakuve.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EF 5364 bytes
SHA-256: b143cda0fe21bd292299b0ff16e691a3f4cd1a865b02f66cc7525725dcc89f1b
font_01_sfnt_off0000783b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783B 10900 bytes
SHA-256: 45b1ef33f8bea1e7b16b64025664e65254846df5deb250f585cfcfbdef473a72
font_02_sfnt_off00009c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C93 16332 bytes
SHA-256: 8e6f44f21a6cb6464db7b2705935d0eed1bbcefc8c2e8ed09117199423754ed5