Malicious PDF — malware analysis report

Static analysis result for SHA-256 f642cc08415ebeb8…

MALICIOUS

PDF

43.4 KB Created: 2020-08-22 03:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b08e5cb38a881725af34ab2785d50631 SHA-1: 0fc72fd7812a0f8e411ec32bbb3a9a4f4290441e SHA-256: f642cc08415ebeb88be0b185b767f4bbf64b039bb555823ea4b43547fa6b573e
202 Risk Score

Malware Insights

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

The PDF file contains embedded links that lead to a known malicious redirector, ttraff.com. The document body text, though heavily obfuscated, includes language suggesting a financial lure ('Balance sheet reconciliation statement'). The presence of numerous external PDF links, many hosted on cdn.shopify.com, indicates a link farm designed to obscure the ultimate destination. The primary malicious link is https://ttraff.com/pify?keyword=balance+sheet+reconciliation+statement, which is likely used to redirect the user to a further malicious site.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=balance+sheet+reconciliation+statement In PDF document text
    • http://pitafas.northwalestreeservices.com/uploads/1/3/1/3/131380505/xabepululedu-vusozafetu.pdfIn PDF document text
    • http://files.spiritofvenice.info/uploads/1/3/1/8/131857304/denekalevaxago_woxodezazuxepir_wisavagedesevam.pdfIn PDF document text
    • http://files.balikowskidentallab.com/uploads/1/3/0/7/130739528/3a1023fb243b5.pdfIn PDF document text
    • http://goker.aprilscottphoto.com/uploads/1/3/0/7/130739640/lidifi.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/1/0433/5930/5880/files/51450801936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/guxejobuvadobakekilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1871/files/cemu_title_keys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/faxopozavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/paxugosidegol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/98677607961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7813/9556/files/5206650196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7253/files/honkai_impact_3_hephaestus_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/38594430948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3439/0178/files/english_grammar_exercises_tenses_mixed_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/xoxodizopagekali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/zigikimifolaladega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/47681155872.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_off00006c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C53 5088 bytes
SHA-256: 727b90f151bd109d6b5e151b7cd67a647081055cf6a56f4dcbf18b3622635edc
font_01_sfnt_off00007d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D67 10356 bytes
SHA-256: a3b99743c2685fde0c3655b0d1bd6007cde73dec828967dfb1a42f21274a9504