Malicious PDF — malware analysis report

Static analysis result for SHA-256 7196f975e502b3bc…

MALICIOUS

PDF

30.1 KB Created: 2020-08-23 12:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d1f828959cffe2499411e985e0a58ed3 SHA-1: f9f63c0406d4d0e9e143012fb84b7a43926d9cf5 SHA-256: 7196f975e502b3bcba13faf0d95bd311781e48f6374a3b35919e6ea759055dca
174 Risk Score

Malware Insights

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

The PDF is identified as a malicious redirector and an image-only lure, typical of phishing campaigns. It contains numerous links, including a primary malicious redirector at 'https://ttraff.com/pify?keyword=voot+colors+tv+serials', which likely leads to a phishing site. The document body itself contains obfuscated text and embedded URLs, further supporting the phishing lure attack pattern.

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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 30 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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=voot+colors+tv+serials
    • http://seluzo.genawave.com/uploads/1/3/1/3/131398177/detanu_kavawape_zopenuri.pdf
    • http://files.etamucaliforniadkg.org/uploads/1/3/1/0/131070160/kubalupepololivamiw.pdf
    • http://gojenur.loranzierogers.com/uploads/1/3/1/8/131871622/pikakatunez_mowaputo_ridotolames.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/6955/4332/files/26701948480.pdf
    • https://cdn.shopify.com/s/files/1/0434/8500/3926/files/jimewabidasobebanowasuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0523/8688/files/expertise_definition.pdf
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/70775170349.pdf
    • https://cdn.shopify.com/s/files/1/0436/9206/4933/files/97272560423.pdf
    • https://cdn.shopify.com/s/files/1/0431/7636/2150/files/62244409185.pdf
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/tozuvikepofamel.pdf
    • https://cdn.shopify.com/s/files/1/0437/6929/9101/files/jekubijola.pdf
    • https://cdn.shopify.com/s/files/1/0434/5813/4168/files/tiwoxijiwukepuzokuf.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_off00003e0c.bin
5d062258e9088860481b738c594e70d308db7b1dd958c57cde303823cb5ae8be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E0C 4820 bytes
font_01_sfnt_off00004e7a.bin
319634751c572f7d3a7979963d3c646f5a191dd4033a37739ce6ad398b84b756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7A 8216 bytes

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