Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cef9699c147d0a…

MALICIOUS

PDF

49.0 KB Created: 2020-07-27 23:13:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7e50dc16c5dbcb9b413da1de41b0d89 SHA-1: 009e4a2259e982479e9fe06b60e9940413fe6bb5 SHA-256: a9cef9699c147d0a652a8a55767181598bedc34e4ea9d3f8ed9dd6f6ad48c4a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains text related to 'copy sqlite database from assets android', which may be part of a lure.

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=copy+sqlite+database+from+assets+android In PDF document text
    • http://files.rootedaltarministries.org/uploads/1/3/2/7/132741339/wojetituzu.pdfIn PDF document text
    • http://files.bribelle.com/uploads/1/3/1/4/131482822/4078812.pdfIn PDF document text
    • http://files.jordanback.net/uploads/1/3/2/7/132740804/kanofinori.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/1/0427/7963/9967/files/nepeviwakanunofat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/1546568595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/wavino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/98305121847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/31511858212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3167/3502/files/94952798090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/zavexopizukabalexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9444/2145/files/lowowevefojudogowadoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/518239352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0240/4769/files/65279780346.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C71 5364 bytes
SHA-256: 3110f0b4793e7f7fd39d951d6941f32e2f6b0d249d42da8cfccf2db4cac6f134
font_01_sfnt_off00007e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9A 10120 bytes
SHA-256: 8aece95b2b392ed6b4160c72cfc67af711596a6f32aa1f05f6ea30fb0d44e387
font_02_sfnt_off0000a16d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA16D 16168 bytes
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8

Open this report in the interactive analyzer, or submit your own file for analysis.