Malicious PDF — malware analysis report

Static analysis result for SHA-256 96bd02ee48c5fe4b…

MALICIOUS

PDF

45.5 KB Created: 2020-07-24 22:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 679960c1bee8793c44987a0da9646bc3 SHA-1: 7c1b3f62d54037ddb8bd133657ac9216c022e515 SHA-256: 96bd02ee48c5fe4be126e905b9100d24aac0f3060977db91f1197eaf4498bf86
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in a way that mimics a search result for a popular song, suggesting a social engineering lure. The file also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm used for SEO poisoning or distributing malicious content. No scripts were extracted, and the document body was heavily obfuscated.

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=o+saki+saki+song++mp4+hd
    • http://files.michellewalkermusic.com/uploads/1/3/1/4/131408432/rasilirasiwu_bujulafegu.pdf
    • http://files.twohawksfoundation.org/uploads/1/3/0/7/130738710/2f9c1b5a.pdf
    • http://files.aydenbbq.org/uploads/1/3/1/8/131871670/4024283.pdf
    • http://files.pierceforum.org/uploads/1/3/0/9/130969695/6117384.pdf
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/22278347700.pdf
    • https://cdn.shopify.com/s/files/1/0434/1674/8190/files/88156067724.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/didixavukumekovamolekop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/32380425258.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5128/files/6325562206.pdf
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/zikubuxebidofikuxowit.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/mumipowukagapim.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/31373067132.pdf
    • https://cdn.shopify.com/s/files/1/0431/3805/6354/files/13913598465.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/24076154337.pdf
    • https://cdn.shopify.com/s/files/1/0438/3234/4736/files/jisefuferebajokedu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8216/1053/files/23009523609.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_off00006fc7.bin
959aa0dc99dbbdeca40dd2136ed4a563ee7f64a566fcfc4ffe591fcc3d971471
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC7 5012 bytes
font_01_sfnt_off0000809c.bin
b234f4c795de247e14689d186057be69ee3660970fca53bc57949f08088dc537
pdf-font-stream PDF embedded font (sfnt) at offset 0x809C 12552 bytes