Malicious PDF — malware analysis report

Static analysis result for SHA-256 3314c44d93edb351…

MALICIOUS

PDF

49.7 KB Created: 2020-08-09 03:15:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43abebc1444aa6f85e6533d9f6c76c3e SHA-1: 37087ceb31948b6e2b1e89a1c47f3914f80b97de SHA-256: 3314c44d93edb3516572e9bea9943545cf2fdc69b0881c324b549b4beab8af0a
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'baby boy names pdf free download' and the malicious URL, suggesting a lure for users to download potentially harmful content. The primary malicious IOC is the redirector URL, which is designed to lead users to malicious infrastructure.

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=baby+boy+names+pdf+free+download
    • http://files.paulanovak.net/uploads/1/3/1/4/131437669/fe93576ca25f8.pdf
    • http://files.psuvita.org/uploads/1/3/1/6/131637774/dikuselupa.pdf
    • http://pukitid.annmcbridedesign.com/uploads/1/3/1/6/131606201/zulenudos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0538/6647/files/12564198502.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/sebumufumepuxabifus.pdf
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/lapezavufekutobatiro.pdf
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/wezamunelaramozata.pdf
    • https://cdn.shopify.com/s/files/1/0448/2197/1104/files/arlberg_ski_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/hunter_x_hunter_1999_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/74909209425.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/anthropology_ugc_net_study_material.pdf
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/jovinawen.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/dinewulejuregoborepe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8485/8022/files/canon_in_d_piano_sheet_music_easy.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/mumejudedarisasexaxojax.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_off0000644e.bin
8f315f725c74c05dff4078e38a175662de907b989eaefeba9d5eb189a03db37c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 9748 bytes
font_01_sfnt_off00008436.bin
4a667fdc91a99c8ad30af365abd00e293f01e258e3e3418113821b118ebfe5c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8436 5568 bytes
font_02_sfnt_off0000971d.bin
9475dcd653e13c534182d5ad9961d02c94633a4eb94509a9d5a78ca6a1804b44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x971D 10360 bytes

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