Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c2842192ecd748…

MALICIOUS

PDF

43.0 KB Created: 2020-08-18 12:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0adedaf3226b97de2c1b429bc5089f2 SHA-1: 2d4e3d9b224771ea3cc95dfebff96830fb1c55b4 SHA-256: 96c2842192ecd7489b56496531e5b6ff7f225a7ecaf333fa2ae9b6be55d2806b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.ru'. Another critical heuristic identified a PDF link farm, suggesting an attempt to artificially boost search engine rankings or distribute malicious content. The ML classifier strongly supports the malicious nature of the document. The presence of obfuscated document body text and multiple Shopify-hosted links, alongside the redirector, indicates a likely phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.ru/pify?keyword=transformers+fall+of+cybertron+path+blaster
    • http://pubuluxi.lmctotherescue.com/uploads/1/3/1/1/131164250/0b8fe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/99025598016.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3336/files/tezimobudukilesataximune.pdf
    • https://cdn.shopify.com/s/files/1/0435/5512/7459/files/gaguralumuxabolomarunon.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0086/files/61183955263.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/91866762937.pdf
    • https://cdn.shopify.com/s/files/1/0431/5935/5558/files/finovirigoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/asatru_bible.pdf
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/96819115041.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9944/files/projeto_piscicultura_tanque_rede.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/validity_in_testing.pdf
    • https://cdn.shopify.com/s/files/1/0433/9089/4247/files/xinemegubagaxesenujokelev.pdf
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/tinkers_construct_attributes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dbb.bin
f4d0bf888ed7775136c89fcdd5faa76320b5001515125fef2aa38f88454efb50
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBB 5188 bytes
font_01_sfnt_off00006f2c.bin
f283b285ae703d4403911b8fbec864b33936fbb62ef53c8260199254681c03b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2C 9948 bytes
font_02_sfnt_off0000912e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x912E 4324 bytes