Malicious PDF — malware analysis report

Static analysis result for SHA-256 0409b22f86de0eb8…

MALICIOUS

PDF

44.7 KB Created: 2020-08-19 21:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9afe563c7446142493bf013524eb1071 SHA-1: 1cd732c1a8515cd967eabbbf50f31746861a93ac SHA-256: 0409b22f86de0eb80d41b0e1803ee689aed86fb0e67f980d766bf39f06a1220b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a free travel brochure template. This redirector likely leads to further malicious content or exploits. The PDF also contains a large number of links to other PDFs, suggesting a link farm or SEO manipulation tactic. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=travel+brochure+template+psd+free
    • http://files.camaslaw.com/uploads/1/3/0/8/130873846/nanulutuvazatoni.pdf
    • http://geguwa.littlesilverems.com/uploads/1/3/0/7/130775455/fogipobo.pdf
    • http://tafiridi.mylavishlylathered.com/uploads/1/3/0/9/130969054/faxitatuvoxonuzo.pdf
    • http://files.beantobar.ch/uploads/1/3/0/8/130813747/8890189.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/3394/2423/files/pirazodolepinogafalosomof.pdf
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/2761968228.pdf
    • https://cdn.shopify.com/s/files/1/0434/3106/7813/files/lewirunosiminoripetemoxa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1663/2992/files/denutegufoboravikixigalu.pdf
    • https://cdn.shopify.com/s/files/1/0445/7719/4148/files/christian_apologetics_van_til.pdf
    • https://cdn.shopify.com/s/files/1/0430/2028/8153/files/43706403215.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/32359499237.pdf
    • https://cdn.shopify.com/s/files/1/0447/6433/2181/files/ada_sanchez_nude.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/amway_all_products_price_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/tigezemudevujinokit.pdf
    • https://cdn.shopify.com/s/files/1/0434/3690/0504/files/fikazowabakoveba.pdf
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/82275113362.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_off00006827.bin
3a553a1ec7d858159d567c35c1d09c2f2ddb5bee2e7b0db5651380891eb37bc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6827 5544 bytes
font_01_sfnt_off00007add.bin
7489dfe29aa5b516188ce5da0789537c16f6685919222d7d0fca36d63f37eeb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADD 13448 bytes

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