Malicious PDF — malware analysis report

Static analysis result for SHA-256 66c47a3227d060be…

MALICIOUS

PDF

44.4 KB Created: 2020-08-01 20:25:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 28ae938692ebfc05097165212dedfb13 SHA-1: 37867fda6979aef25d92ed9d92fb7d2040f31a58 SHA-256: 66c47a3227d060be6ca2bccbde7b8e1dcfae825d4a11afdb816e6feee0974107
154 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text that appears to be related to the 'pixar touch pdf' lure. The presence of numerous links, many pointing to Shopify domains hosting other PDFs, suggests a link farm or redirection scheme designed to obscure the ultimate destination.

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=the+pixar+touch+pdf
    • http://files.ntoumei.com/uploads/1/3/1/6/131636845/2112974.pdf
    • http://files.crossfitliveloud.com/uploads/1/3/0/9/130969352/5038501.pdf
    • http://files.cynchitpants.com/uploads/1/3/1/4/131407194/xebut.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/nidonulix.pdf
    • https://cdn.shopify.com/s/files/1/0432/4179/9843/files/c_doubly_linked_list_class_example.pdf
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/pafuwojabede.pdf
    • https://cdn.shopify.com/s/files/1/0434/9617/7816/files/blade_and_soul_black_ram_insignia.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/78595060302.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/vumeluni.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/depogi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/merenapizipafifo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/lonafosekero.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/dexonuperuv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006284.bin
df53ce82eddd93b3316cda91a0768330d08304f4f6e1815ba769c3fb53afb402
pdf-font-stream PDF embedded font (sfnt) at offset 0x6284 4828 bytes
font_01_sfnt_off00007309.bin
bfe9f0c074c0e2203d83eeeca3c07573eafc9b5715c77e5413122cb13855cbca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7309 10592 bytes
font_02_sfnt_off00009747.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9747 4324 bytes