Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a4b5688aeb8352…

MALICIOUS

PDF

43.0 KB Created: 2020-08-02 15:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 704678598d41958344abf049e6e5a35d SHA-1: 0da328a7a12604bf1d3e9b2f71ccedb127d073f6 SHA-256: f7a4b5688aeb835255bfa37f5a03d3c4ecae3c6ab7a131bba142b6163a04597e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to an 'Aquatools sand filter owners manual' and numerous embedded URLs, many of which point to Shopify domains hosting PDF files. The primary malicious URL is https://ttraff.com/pify?keyword=aquatools+sand+filter+owners+manual, which likely serves as a lure to a more dangerous payload.

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=aquatools+sand+filter+owners+manual
    • http://files.wabashcotobaccofree.net/uploads/1/3/0/7/130738554/nefidanurafe.pdf
    • http://files.swamiseva.org/uploads/1/3/1/6/131637385/vutelefabebot.pdf
    • http://files.jaydenericbeaudoin.com/uploads/1/3/0/8/130874257/1859883.pdf
    • http://files.lordslandscaping.com/uploads/1/3/1/1/131163867/6656998.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/50916240873.pdf
    • https://cdn.shopify.com/s/files/1/0437/3869/3797/files/28319244186.pdf
    • https://cdn.shopify.com/s/files/1/0431/4923/0237/files/76329891994.pdf
    • https://cdn.shopify.com/s/files/1/0437/2532/4439/files/php_array_size.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65496272691.pdf
    • https://cdn.shopify.com/s/files/1/0434/3414/7989/files/dedorifaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/2011/4344/files/13917558307.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/mujeweranujuwafo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/puderifuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/32425906261.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6290/files/xaxoge.pdf
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/29267760653.pdf
    • https://cdn.shopify.com/s/files/1/0433/7818/0257/files/nizoxudetipifo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/14196954237.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_off00004d7d.bin
9ac0acb759e46505c7890ccc0586e7a424cf1806611faba8d51d9f8321e8f63d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7D 5144 bytes
font_01_sfnt_off00005ee7.bin
38c797f4393b1aef47fc64ff3a0546308c3d8edfe1cd49a616d1be985a6d98a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE7 15136 bytes
font_02_sfnt_off00008e35.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E35 4324 bytes