Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3e22788f65f091d…

MALICIOUS

PDF

51.7 KB Created: 2020-08-25 01:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1544aaa10e5ba63c02dfb1c62a949812 SHA-1: b42077900d83e8f34485cb84e0d98485de71b91e SHA-256: c3e22788f65f091da59c52b17b5890660daae32b97d1266d961f5e7a3614d6f3
152 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure to download further content, likely malicious, under the guise of a 'Breath of the Wild recipe book PDF'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users to potentially harmful sites.

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=breath+of+the+wild+recipe+book+pdf
    • http://files.literacygatewayinstitute.com/uploads/1/3/1/4/131407423/4546974.pdf
    • http://jiripo.craigupright.net/uploads/1/3/1/4/131408027/fiziroxokode-dulizeza.pdf
    • http://sabijafi.alittlepeaceayurveda.com/uploads/1/3/0/7/130775388/4741573.pdf
    • http://dozom.kwonseulgi.com/uploads/1/3/0/8/130874524/xesosofobotira_tegonireleluzi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8829/files/xenerowusujix.pdf
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/mumuzefojoxapedetegewiv.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7078/files/sindhi_alphabet_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/wondershare_video_converter_ultimate_keygen_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/0146/1410/files/7089163626.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/esc_guidelines_ventricular_arrhythmia.pdf
    • https://cdn.shopify.com/s/files/1/0435/2045/8906/files/16612356133.pdf
    • https://cdn.shopify.com/s/files/1/0432/8482/4222/files/how_to_make_balloon_animals.pdf
    • https://cdn.shopify.com/s/files/1/0429/0235/6124/files/68286824438.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_off00006d05.bin
cc5137fdf5d77c86bbcff81658d19b80b797a2a1b5ffdb25ba22890073ac1122
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D05 5408 bytes
font_01_sfnt_off00007f77.bin
b624f3cd8d7bda81a5fad2f8c387f64e655cb1a6fe10bb9f53df9b9f78b7f90f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F77 14424 bytes
font_02_sfnt_off0000acac.bin
3f70697d8cfd0b9becff5adcad726f9ffedcc5d773cc6f7abbcc82b2f8034994
pdf-font-stream PDF embedded font (sfnt) at offset 0xACAC 16164 bytes