Malicious PDF — malware analysis report

Static analysis result for SHA-256 b70060f39d1fc212…

MALICIOUS

PDF

51.9 KB Created: 2020-08-20 22:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4daf0aa8da41e1a38c1d4fc4910f81f SHA-1: 5f7181620cf254a4bcd6dee386153bb8939761be SHA-256: b70060f39d1fc2124aeb0f403b98c0f1da076a2c198eadb3923226637e516567
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier and heuristics indicating malicious redirector links and a link farm. The document body contains a URL that appears to be a lure for 'bodyguard movie mp4 video', likely a social engineering tactic. The embedded links, particularly the one to 'ttraff.ru', are indicative of a phishing or malware distribution attempt. No scripts were extracted from this sample.

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.ru/pify?keyword=bodyguard+movie+mp4+video
    • http://vowekox.ziggymercurymolds.com/uploads/1/3/1/4/131455328/3531668.pdf
    • http://files.magdalenasgarden.com/uploads/1/3/0/8/130814588/2843164.pdf
    • http://furazowal.philipschmitz.com/uploads/1/3/0/7/130738531/neteletogugima.pdf
    • http://files.moonessence.com/uploads/1/3/0/8/130814225/nipikale.pdf
    • http://shurll.com/amyho
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/animal_kingdom_florida_map.pdf
    • https://cdn.shopify.com/s/files/1/0435/6738/2687/files/69020044110.pdf
    • https://cdn.shopify.com/s/files/1/0437/9020/5090/files/longreach_regional_council_road_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/5361/2182/files/75433383775.pdf
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/23845228875.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/61239495988.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/21432037729.pdf
    • https://cdn.shopify.com/s/files/1/0437/5108/0085/files/67685532445.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/lerekikogavizefut.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/t_c_s_company_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/2837/2886/files/borderline_personality_disorder_test.pdf
    • https://cdn.shopify.com/s/files/1/0437/1464/2070/files/tilovekukakevinedufar.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055f7.bin
55c2d276048909f4b82639963e5324ac73def24bf373e9c6335e974563e3a3a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F7 5064 bytes
font_01_sfnt_off00006740.bin
7d87029d484a45ef7a0b38d17b4f0c01f1fee4875ab3a03b3bfd5f64fb327796		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6740 15268 bytes
font_02_sfnt_off000096c5.bin
e58e8e8d3617fa2f52d62469859eb662c26c1c1537dc21f5cc6f1aa71eaa6aed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96C5 18776 bytes
font_03_sfnt_off0000b42c.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB42C 4324 bytes

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