Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd10949f7677e1c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-09 04:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f07e90a70bfa0b5fa3c97e3483a6f17 SHA-1: 5405dd8e84e67bd522c93494cfc0d2b2d1615d52 SHA-256: bfd10949f7677e1c32b9c39af21ef22672f20afec46d19d1f94039764e5c5331
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or SEO poisoning tactic designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same suspicious URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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.com/pify?keyword=risk+game+of+thrones+deluxe+reglas+en+espa%25C3%25B1ol+pdf
    • http://files.mtclairmissionarybaptistchurch.org/uploads/1/3/0/8/130814017/tiwigigonabivel.pdf
    • http://files.bridalgownsnh.com/uploads/1/3/1/4/131410007/9604557.pdf
    • http://files.jameshesla.com/uploads/1/3/1/3/131382841/fesigeke_pageloti.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/cancer_de_prostata_imss.pdf
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/viwenirilazuzo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/28712613087.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/tuwexubofoboj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2441/files/xixokorowitexepakibim.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/44147146720.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7746/files/drag_me_down_guitar_chord.pdf
    • https://cdn.shopify.com/s/files/1/0435/4385/5258/files/timofosiwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3425/5266/files/69612232230.pdf
    • https://cdn.shopify.com/s/files/1/0436/3829/2638/files/zirisagipi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/hospital_waste_management_project.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_off0000645f.bin
d42b2628df623d48f9a402831f4240b8fa61c43f20a38953fcbfbaf08a4d36aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x645F 5804 bytes
font_01_sfnt_off000077c2.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77C2 1800 bytes
font_02_sfnt_off0000804f.bin
bc526eb19fed081361c5cd51ecb0fb659a0776a33eff2172cff3d5a2e5341c1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x804F 10332 bytes

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