Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb01120b896d3012…

MALICIOUS

PDF

55.5 KB Created: 2020-08-02 01:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1cab1e904ec544ed096449efcf27765b SHA-1: 391abc33bd0db9ede15888b80e020f552940cb9a SHA-256: bb01120b896d30125e90eb9c95ce67ea84d1908f9cd4367244ed0c411c9308fd
152 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text related to 'protection enchantment minecraft' and the malicious URL, suggesting a lure to a fake or malicious site. The ML classifier strongly flagged this PDF as malicious.

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=protection+enchantment+minecraft
    • http://files.ministryoflove.me/uploads/1/3/1/6/131606984/d28521e1ce4d.pdf
    • http://files.bambus-produkte.info/uploads/1/3/1/4/131437291/6660507.pdf
    • http://files.aliciacasiano.com/uploads/1/3/0/9/130969352/memekumukawaweno.pdf
    • http://files.angelcityministries.com/uploads/1/3/0/8/130874631/xovugid_jesopile_dujepiso_jozuson.pdf
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/13456806531.pdf
    • https://cdn.shopify.com/s/files/1/0437/7251/0362/files/kirubajiwozi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9273/8201/files/tatolimowitivizejo.pdf
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/povegibijozekaxuwazokax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98908457197.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/86707380388.pdf
    • https://cdn.shopify.com/s/files/1/0430/3391/9645/files/19027522865.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/zinadetejoxekukiveluwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5053/1990/files/kuninufozelijunaxaserovub.pdf
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/madiremozasemokifujegex.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009bb4.bin
83e46172a8c1086d99ff1405922327dc6fd63a6169b38747f7c1f6dc846d31b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB4 4912 bytes
font_01_sfnt_off0000ac43.bin
285528288e4de67fa2d8689b7428f2f40958e1a274e3112c0c24f413219f4872
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC43 10632 bytes