Malicious PDF — malware analysis report

Static analysis result for SHA-256 977248cb292a12b3…

MALICIOUS

PDF

36.8 KB Created: 2020-08-15 02:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a677e826bd3d3b506b5964a9be85e80 SHA-1: da4ce144477f7da7fcd595f1d2fce8ef829c76c1 SHA-256: 977248cb292a12b37612485bf65b856403e5ce241c9639ddb78768525d8db56f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=lewis+capaldi+someone+you+loved+piano+sheet`. This indicates the document is designed to lure users into clicking on this link, likely to a phishing or malware distribution site. The PDF also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. The document body contains garbled text but also includes the target URL, reinforcing 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.ru/pify?keyword=lewis+capaldi+someone+you+loved+piano+sheet
    • http://files.tamarawolfson.com/uploads/1/3/0/8/130814258/besutefoviso-fikogibu.pdf
    • http://ganosejom.onelifeyourlife.net/uploads/1/3/1/4/131407558/xekutibuguxava_kirugud_zadululenabelo_sujuwo.pdf
    • http://files.tjpfitness.com/uploads/1/3/0/7/130738996/wovurebifotekir_biridativuxanuk_godixep.pdf
    • http://gokaguwez.talismanmag.net/uploads/1/3/1/4/131438111/1179506.pdf
    • http://bonokim.marketsquareusa.com/uploads/1/3/1/4/131437792/9476132.pdf
    • https://cdn.shopify.com/s/files/1/0437/5638/8510/files/beauty_and_the_beast_piano_and_violin_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/80800052434.pdf
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/51472496299.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0797/files/46233161555.pdf
    • https://cdn.shopify.com/s/files/1/0434/9604/6752/files/56069228661.pdf
    • https://cdn.shopify.com/s/files/1/0446/9365/1610/files/36347381273.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdf
    • https://cdn.shopify.com/s/files/1/0432/4553/5400/files/70602606091.pdf
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/pupeneparepokijovurok.pdf
    • https://cdn.shopify.com/s/files/1/0437/5586/4213/files/kejurogapugitedodalus.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/22879807274.pdf
    • https://cdn.shopify.com/s/files/1/0434/7330/5750/files/36888605900.pdf
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/tetododolitoduwekopiju.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_off0000474c.bin
e30a579541208e5ebc1213fe730e15dd32aed9f0df30ee4e8cbe066fa4f2bc36
pdf-font-stream PDF embedded font (sfnt) at offset 0x474C 5296 bytes
font_01_sfnt_off00005938.bin
320ed8cecc43a8f2a96aac6c9da59cd63a8f51c1ddfca0a59ba75118997cc3e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5938 9032 bytes
font_02_sfnt_off00007800.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x7800 4324 bytes