Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4bb78bb0be2594…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 01:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b926db7b24a1861d6b83cf1f216306f SHA-1: 7132a21f6d19945f3fb1c43a33af152f209e7133 SHA-256: 2b4bb78bb0be259463e18d651a91fcbe58e0940c1b261d5ccc90cbbe252beec0
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical redirector link to 'ttraff.cc'. The document body text, though heavily obfuscated, contains the same lure text as the redirector URL, suggesting an attempt to trick users into clicking the link. The primary purpose appears to be directing users to malicious infrastructure via a deceptive lure.

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.cc/pify?keyword=t20+cricket+score+sheet+free
    • http://files.thestonestash.com/uploads/1/3/0/9/130969485/3252634.pdf
    • http://fuwil.soarohio.org/uploads/1/3/0/8/130874113/jabaxosotelibo-mavitudul-volagexijufor.pdf
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/80799716731.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/deluzopokipejapuko.pdf
    • https://cdn.shopify.com/s/files/1/0435/5696/2467/files/broken_vessels_piano_chords.pdf
    • https://cdn.shopify.com/s/files/1/0437/2565/2136/files/compreender_o_behaviorismo_baixar.pdf
    • https://cdn.shopify.com/s/files/1/0434/1432/3356/files/pafote.pdf
    • https://cdn.shopify.com/s/files/1/0438/8379/0491/files/14721040753.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/biology_notes_form_4_chapter_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/inverse_auger_hole_method.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/tukizogagodiwerulegazido.pdf
    • https://cdn.shopify.com/s/files/1/0434/8831/3510/files/scrivener_dissertation_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/1879/7724/files/gafaxugakejo.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_off00005f5f.bin
55bb38f973e3f2749d02b23b45a337a1435d90862ee099c2db5ec744f1489d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5F 4696 bytes
font_01_sfnt_off00006f5d.bin
3af5b7146ae15a2a76fd7a546913f03d1a3642981ef7969184a64d17c797c828		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5D 9776 bytes
font_02_sfnt_off000090b9.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90B9 4324 bytes

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