Malicious PDF — malware analysis report

Static analysis result for SHA-256 53500884743a8519…

MALICIOUS

PDF

34.8 KB Created: 2020-08-04 18:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 891754847e9b5f37d42fa30196c77927 SHA-1: 634cc7540090639c557ddc36091df1f0ae617a06 SHA-256: 53500884743a8519b76ea69dbf16f74ea906363ddbbfcd6426c300836e0269c1
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with the primary URL pointing to a redirector service. This suggests an attempt to obscure the ultimate destination of the malicious content, likely a phishing page or malware download. The document body itself is heavily obfuscated and contains a mix of seemingly random text and URLs, further supporting the malicious intent.

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=interest+groups+in+american+politics+nownes+pdf
    • http://sekunuxu.mountainvalleypaving.com/uploads/1/3/0/7/130739835/b8ca25.pdf
    • http://files.craftymoma.com/uploads/1/3/1/3/131379639/a2a9c0d6d4.pdf
    • http://files.theblackcownewspaper.com/uploads/1/3/1/6/131606819/pajotovajele.pdf
    • http://files.moruyaanglican.org/uploads/1/3/0/7/130776644/bobulime_zivuke.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/32000804161.pdf
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/nothing_more_albums.pdf
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/lone_wolf_adventure_game_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1977/1799/files/varube.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/63041921379.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdf
    • https://cdn.shopify.com/s/files/1/0429/4007/2092/files/80956672334.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8615/files/21775276030.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/43831372653.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/5682357838.pdf
    • https://cdn.shopify.com/s/files/1/0435/4536/2591/files/58033052650.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/21280615769.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_off0000489d.bin
b6e1bf64e6bf372a046a5b41ec16841197240e79ac92f270c002e6fe5a0c2e05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x489D 5504 bytes
font_01_sfnt_off00005b52.bin
1ba033a5aee3d74fe2be7640611f3fbcc083adb7b0cddfcb6e8231da12cdbf69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B52 10160 bytes

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