Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a72e403269ea19…

MALICIOUS

PDF

118.6 KB Created: 2020-08-01 16:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3fa935812175eec7c6e06e506ff343c SHA-1: 5270fbc4521b77cdeada596b3bc11b2a6565c815 SHA-256: 09a72e403269ea196a86830f4eddf7a1f3f627c341f488c66a9616e17338abc1
262 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains lures for advance-fee scams and recovery secret requests, indicating a phishing or social engineering attack. It embeds a link to 'ttraff.com', identified as malicious redirector infrastructure, which likely leads to a second-stage payload or phishing page. The presence of multiple PDF links, including one to a Shopify domain, suggests a link farm used for SEO poisoning or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=kim+mele+methow
    • http://files.beasflowersandgifts.com/uploads/1/3/1/3/131383319/woviwe_nitofefapexub_kerixomeg.pdf
    • http://files.powerpointers.info/uploads/1/3/0/8/130814238/zafixenuxep.pdf
    • http://files.hawaiihomeschoolnetwork.com/uploads/1/3/1/8/131856353/sudazo.pdf
    • http://files.lovejanaco.com/uploads/1/3/1/1/131163976/lumurolaxekefexosime.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0436/7423/9129/files/30721565840.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/33200055824.pdf
    • https://cdn.shopify.com/s/files/1/0433/8846/9411/files/22689390802.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/38279453817.pdf
    • https://cdn.shopify.com/s/files/1/0431/4932/8533/files/412185671.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/33292122448.pdf
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/vorideponifisomug.pdf
    • https://cdn.shopify.com/s/files/1/0429/3810/6023/files/kolejozojuxufimopol.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/jerafozajemamadarijakuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/26937853399.pdf
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/nunubidob.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000199b6.bin
c6566c77d13f1d61458f8b3ed32b6b624e759ec01766bcdc799ad9f34151f766		 pdf-font-stream PDF embedded font (sfnt) at offset 0x199B6 4504 bytes
font_01_sfnt_off0001a8f5.bin
8275324c7af6e88b3f8f832e0d9b5fd912e4dc5a2ec84a0deb46d78d7fe7ed12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A8F5 10916 bytes

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