Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d040173a0df538…

MALICIOUS

PDF

34.4 KB Created: 2020-08-15 06:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe784eaf97def3502224cfd109ffc9a9 SHA-1: d9de24a2d27fbb880147ad2ed49e8a67c256f6ff SHA-256: 89d040173a0df538c496868af8a6aef3d5b56d45198b19c6ab15359564ae95f6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented in the document body as a keyword search for 'fmea template xlsx'. This indicates a social engineering attempt to lure users to malicious infrastructure. No scripts were extracted from this sample.

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.cc/pify?keyword=fmea+template+xlsx
    • http://files.insituvision.com/uploads/1/3/1/4/131437671/nimod_feragitufu.pdf
    • http://jizuno.timothyprice.net/uploads/1/3/1/3/131380429/xudenobisot_wuribut_vagesomujugo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/alphabet_games.pdf
    • https://cdn.shopify.com/s/files/1/0448/0453/8528/files/resake.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/28016442661.pdf
    • https://cdn.shopify.com/s/files/1/0431/8009/7687/files/toby_keith_who_s_your_daddy.pdf
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/woxejidoratitulapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8148/9818/files/44334155776.pdf
    • https://cdn.shopify.com/s/files/1/0437/5019/5354/files/rewes.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/nolewigamexe.pdf
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/2003_ford_explorer_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/8810/1030/files/duvajowoweworeto.pdf
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/complete_book_of_demonolatry.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_off00004a99.bin
c62bc50e9e373dae43a4acdac97f08d2c1bfaf8b9599eb4eb07e49de576edb53
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A99 4892 bytes
font_01_sfnt_off00005b32.bin
1a2bb07228249c1299cd69513b5f1ff0c9eba4f277799db78bc809f7bdef3394
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B32 9992 bytes