Malicious PDF — malware analysis report

Static analysis result for SHA-256 29fa3e1b7b6f8aef…

MALICIOUS

PDF

40.6 KB Created: 2020-08-05 18:08:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a95454ca05a15817f3964adfe75dac88 SHA-1: 81f6a8f15bb245a7c10feac1fb81ecc6750b8f8b SHA-256: 29fa3e1b7b6f8aef20d8b0d3f77b36cbd9722982abe0fdf8e9f42d9c3cdec5e6
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the PDF is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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=mergers+acquisitions+and+corporate+restructurings+pdf
    • http://files.elizabethjohnsonphillips.com/uploads/1/3/1/8/131871569/jatawipaxe-welakavomo-totoluxik.pdf
    • http://baloz.abqcraftshows.com/uploads/1/3/0/8/130874317/540cff59.pdf
    • http://files.rjsterlingart.com/uploads/1/3/2/7/132740694/lugugosozivubigafope.pdf
    • http://files.kvwilsonauthor.ca/uploads/1/3/2/7/132710795/5919531.pdf
    • http://bofadoxes.naijalink.eu/uploads/1/3/1/6/131606186/rezumekidejeja_vevufejub_katug.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/2807765022.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/gezamem.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/bavuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/5687/4151/files/vuwikak.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/c_programming_malik_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/tupizodakovoguguvi.pdf
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/igenetics_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9376/9894/files/jizewifevewe.pdf
    • https://cdn.shopify.com/s/files/1/0433/9502/3013/files/pikuzi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/rubitidigukidufe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/47225324197.pdf
    • https://cdn.shopify.com/s/files/1/0435/6482/6773/files/42058213072.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_off0000604a.bin
caa168cbfe1bf4486aa9cc59fac29034ef83293963854a84ce955be59bbee4a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x604A 5420 bytes
font_01_sfnt_off000072cf.bin
97149e39fc9a385f2966f301bd719fcce16674a8fdb6ce1b9ed4d04ca065d118
pdf-font-stream PDF embedded font (sfnt) at offset 0x72CF 10044 bytes