Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6f6f4f11b4b6c2…

MALICIOUS

PDF

32.7 KB Created: 2020-08-11 02:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feace4b5b7424e50c5580dec84b5051a SHA-1: c77432c2fe05cc14a78d491ebb573fa971b84363 SHA-256: fd6f6f4f11b4b6c204a65a858ec60b27f278906fd14c73b891c8b00bf022edf2
140 Risk Score

Malware Insights

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

The PDF is an image-only lure, typical of phishing, with a click-outward action. It contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is likely used to funnel victims to further malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. The PDF also hosts a large number of external links, many hosted on Shopify, suggesting a link farm for SEO poisoning or to obscure the ultimate destination.

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 32 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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=angular+momentum+in+quantum+mechanics+a.+r.+edmonds+pdf
    • http://files.whipitalatte.com/uploads/1/3/0/7/130739238/2568331.pdf
    • http://files.prayerlifemusic.com/uploads/1/3/0/7/130775876/bozomiminefoz-bumev-gifodidusit.pdf
    • http://files.namkoorb.com/uploads/1/3/0/8/130814279/09d139010.pdf
    • https://cdn.shopify.com/s/files/1/0434/0151/1077/files/dovoneritiwidebamigelazel.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/xurogezirerezulovedila.pdf
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/giliguwufod.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/gaxijozad.pdf
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/gipafi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4198/0567/files/zaledatuwewemalujujujox.pdf
    • https://cdn.shopify.com/s/files/1/0440/8256/1176/files/disaxuro.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82191842179.pdf
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/tuluduv.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/5354279653.pdf
    • https://cdn.shopify.com/s/files/1/0431/7931/1268/files/xituniforifeji.pdf
    • https://cdn.shopify.com/s/files/1/0447/2002/9852/files/blues_piano_chords.pdf
    • https://cdn.shopify.com/s/files/1/0432/6323/0116/files/where_is_java_exe_located.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/zoxajobiw.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_off00004763.bin
1bde96b1caafc59257b49f472e8792681009ee0068f34a5bc40228937e76ac2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4763 5716 bytes
font_01_sfnt_off00005aa4.bin
d51d7c701e4e1b28920b7130a6c2db3d9a97d6790396498ce5f049514c8460bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA4 7964 bytes