Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae401ca13ce34f6…

MALICIOUS

PDF

49.8 KB Created: 2020-08-28 08:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5d8522227cadbc24da370ef5bd62830 SHA-1: 617104a37ef75c1f13abf0f04c8563e236046224 SHA-256: eae401ca13ce34f6cf4696934aa41151775678a5d627e85bf6e94bcdd38f3baf
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating an attempt to drive traffic to malicious sites. The document body, though corrupted, suggests a lure related to 'Taylormade m3 driver adjustment instructions'. The presence of numerous external PDF links, many pointing to unknown domains, further supports the link farm heuristic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=taylormade+m3+driver+adjustment+instructions.

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.cc/pify?keyword=taylormade+m3+driver+adjustment+instructions
    • http://xonexetu.dragonfiresafety.co.uk/uploads/1/3/1/0/131069934/ca6082000e89.pdf
    • http://files.hardknoxstunts.com/uploads/1/3/1/8/131856195/pibosivagenuxajuwi.pdf
    • http://nugegi.anastasiaabboud.com/uploads/1/3/1/3/131383377/nekonotex_fejujep.pdf
    • http://files.immortalize-your-moments.studio/uploads/1/3/1/6/131606890/xevawewonebusa.pdf
    • http://nezar.trattoria89.com/uploads/1/3/2/6/132695535/najidini.pdf
    • https://cdn.shopify.com/s/files/1/0462/2444/1498/files/corbettmaths_lcm_and_hcf_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/bsc_1st_year_maths_solution_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdf
    • https://cdn.shopify.com/s/files/1/0435/0610/6528/files/91626407617.pdf
    • https://cdn.shopify.com/s/files/1/0438/5295/5810/files/everything_about_periodic_table.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/mastadex_s_hero_editor.pdf
    • https://cdn.shopify.com/s/files/1/0464/3110/9272/files/goalkeepers_report_2017.pdf
    • https://cdn.shopify.com/s/files/1/0429/3361/6803/files/mumaful.pdf
    • https://cdn.shopify.com/s/files/1/0437/4642/7034/files/56797397984.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/classroom_games_esl.pdf
    • https://cdn.shopify.com/s/files/1/0432/2862/7099/files/bonos_de_carbono_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3873/files/58451474708.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_off00007840.bin
4588f893b8cd72a607a21b8eb4b1915cf97fb13f50825b8b8bc7f101726e68fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7840 5320 bytes
font_01_sfnt_off00008a47.bin
d9d74fdadd15b60cdf87012102727bc5beae7b521ecf3868e1ae22b6da078684		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A47 9740 bytes
font_02_sfnt_off0000abb6.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABB6 4324 bytes

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