Malicious PDF — malware analysis report

Static analysis result for SHA-256 9581173c8ddffdb7…

MALICIOUS

PDF

41.6 KB Created: 2020-09-06 22:18:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f66d06a50ff493aa751f9d997b51f75 SHA-1: d81a07d920f3485bbcfc2db1a0b2a22c13061e86 SHA-256: 9581173c8ddffdb789c51343e575fedd5e90e768645482a2ceb2eb5fe4f774c5
128 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.me/wix?keyword=honey+label+template+free'. Additionally, it exhibits a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to distribute content or mask malicious origins. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=honey+label+template+free
    • https://cdn.shopify.com/s/files/1/0431/6489/3344/files/58417589272.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/11571800691.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/jomigogewiteteri.pdf
    • https://cdn.shopify.com/s/files/1/0438/7835/1003/files/the_brak_show_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0437/8260/2914/files/cell_biology_and_genetics.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/cfa_curriculum_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/7977/7952/files/36464306361.pdf
    • https://cdn.shopify.com/s/files/1/0438/0652/3552/files/mailto_body_format.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/24540836622.pdf
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/fozuzipemugotopezokumogap.pdf
    • https://cdn.shopify.com/s/files/1/0437/0916/9815/files/84943169953.pdf
    • https://static.usrfiles.com/ugd/5be868_1d4a504e04e942eda1bb70062c4819fb.pdf
    • https://static.usrfiles.com/ugd/c1615c_02887caab8c84eedb36f57837abe5799.pdf
    • https://static.usrfiles.com/ugd/11baf9_0fac3de6ddc24fd78b1a89bf25df5a5a.pdf
    • https://static.usrfiles.com/ugd/d2b720_93c3720ac91441e095d4f29bf1c7b24b.pdf
    • https://static.usrfiles.com/ugd/145364_6eb8e62057b74ce894a43ddc3c821c96.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_off00005945.bin
6159b6eeed59160cff57b8905a7ab91bcdc5dada0e17f9210a70779834238b32
pdf-font-stream PDF embedded font (sfnt) at offset 0x5945 4812 bytes
font_01_sfnt_off00006982.bin
8abe919079e120148d20ee1286f9adcb3afb193c7e52a3bdd9f7c9b36727c1b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6982 9964 bytes
font_02_sfnt_off00008bae.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAE 4324 bytes