Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a49a520373236a1…

MALICIOUS

PDF

45.8 KB Created: 2020-07-25 10:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f12e2a665d3728a1d9ef3b5b25e4a284 SHA-1: 5b39e1923c8f144bf5b3aaa11e598cc036feace9 SHA-256: 4a49a520373236a1407df66a8f713d9a23ab21d939fce609b534c4edd19cc426
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to financial statements. The presence of numerous external links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=cash+flow+statement+format+philippines In PDF document text
    • http://files.lorigphotography.net/uploads/1/3/0/8/130815009/6570085.pdfIn PDF document text
    • http://files.electaylin.com/uploads/1/3/0/8/130813851/9800163.pdfIn PDF document text
    • http://files.seatoskyallbritishrally.com/uploads/1/3/0/9/130969146/486625.pdfIn PDF document text
    • http://files.positivelypinckney.com/uploads/1/3/0/9/130968967/1373947.pdfIn PDF document text
    • http://files.pitzeradventures.com/uploads/1/3/0/9/130969659/bexatotavotew-kezalutow.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/1/0432/3491/8568/files/43474353999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6795/5610/files/sezipidomabesobofema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7199/5033/files/jozuremabafolifuwegixisos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/fumunubivig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/semirerurem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/nugatevab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/loxodebop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0724/files/xokofuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4997/4946/files/82730966186.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B0 5044 bytes
SHA-256: 2128de24946a79e4714621aa978de65f393304bad65a811c26ac5a87640c199c
font_01_sfnt_off000086b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B8 10364 bytes
SHA-256: 6b70e6635be1188e3bf226db4a28a231360b9cdba61db2bd04cdaa85139e75f5

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