Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee59cab33c2daa9…

MALICIOUS

PDF

43.3 KB Created: 2020-08-11 23:27:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3236724a200eba15b919e5f0bef87b8c SHA-1: 06ede7f82fa81fa1317002fa71475322bb7c80e3 SHA-256: 8ee59cab33c2daa93a5547ee5a603d93d213106a483c9160e24e05a3740febf0
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'mapa de carreteras de m 0xico pdf'. The presence of numerous links, including to a known malicious redirector, indicates an attempt to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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.com/pify?keyword=mapa+de+carreteras+de+m%25C3%25A9xico+pdf
    • http://files.camuzphoto.com/uploads/1/3/1/0/131070374/vejetew.pdf
    • http://nurep.moksamassage.com/uploads/1/3/1/3/131383544/bca781dc172.pdf
    • http://files.sweethomeelegance.com/uploads/1/3/1/0/131070327/4981564.pdf
    • http://files.isaiahsixeight.org/uploads/1/3/0/7/130740536/9005644.pdf
    • http://files.suleamath.org/uploads/1/3/1/3/131398487/povanikelen-siwovewezexuj-rikibip.pdf
    • https://cdn.shopify.com/s/files/1/0438/2782/2752/files/chapter_5_biodiversity_and_conservation.pdf
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/kawugibalimudavat.pdf
    • https://cdn.shopify.com/s/files/1/0437/5586/4213/files/42504841845.pdf
    • https://cdn.shopify.com/s/files/1/0430/8048/2970/files/86603164553.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/lagixojilowujurusamok.pdf
    • https://cdn.shopify.com/s/files/1/0428/7614/1731/files/strength_training_program_for_athletes.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9601/files/jafotorutoviluregegoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1639/6697/files/14902674122.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/aoac_official_methods_of_analysis_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/92338019136.pdf
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/nomodukorebogizuvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdf
    • https://cdn.shopify.com/s/files/1/0430/7343/7847/files/list_of_words_with_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/7983/5547/files/43634092969.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_off0000668c.bin
c3eb3f5096e3342aa266f6818cd9ba4f8be2eb533f4e926cddb988d6fa792145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x668C 5484 bytes
font_01_sfnt_off000078e3.bin
0c8d8a8c486b53d3e12a2f3d5b1b5c81cd75e3b757533965e350ee8d420a1a78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78E3 11528 bytes

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