Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3beb03e933f2ef…

MALICIOUS

PDF

46.8 KB Created: 2020-08-21 20:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca2cf53758db472c90fede9758c8b02b SHA-1: ee777e4e2cb74e04666a7b86c57dd344bbaf3c1a SHA-256: 1e3beb03e933f2efb8bc83542fda00afe7c16acf3c91e9ebc2fc2853df19c8a9
130 Risk Score

Malware Insights

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

The PDF file contains a lure for a "weekly planner bullet journal template" and includes a call-to-action button. It embeds numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure at `https://ttraff.com/pify?keyword=weekly+planner+bullet+journal+template`. Another heuristic indicates a PDF link farm, with many links pointing to Shopify domains, one of which is `https://cdn.shopify.com/s/files/1/0434/1186/5751/files/virtualbox_connect_to_internet_windows_xp.pdf`. The presence of a malicious redirector strongly suggests the document is designed to lead the user to a harmful 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.
  • 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.com/pify?keyword=weekly+planner+bullet+journal+template
    • http://files.dennishorseshoes.com/uploads/1/3/2/6/132681391/lipevenifilog.pdf
    • https://cdn.shopify.com/s/files/1/0434/1186/5751/files/virtualbox_connect_to_internet_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0436/0352/5790/files/52680839436.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/43274519272.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/5565242576.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/juwufemomide.pdf
    • https://cdn.shopify.com/s/files/1/0429/0134/0319/files/wibozafat.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/pirates_of_caribbean_sheet_music_piano.pdf
    • https://cdn.shopify.com/s/files/1/0431/2704/6298/files/pubibanidagexobolofowi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/27697631983.pdf
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/retovinojak.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/super_smash_bros_3ds_dlc_codes_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/79860386209.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_off000064a7.bin
00463d89acb0a87e1e399d1617126400f839ffdc5741ee9eb52aced47177c5bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x64A7 5180 bytes
font_01_sfnt_off00007647.bin
da07faaadebc2ff358fddfff1282bb6ab86c11766234c0171767e3453d651e16
pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 9976 bytes
font_02_sfnt_off0000989f.bin
581c0268a3cc9df95828ceb030693f64bcb03969c1cab585f80954d7fb3b146d
pdf-font-stream PDF embedded font (sfnt) at offset 0x989F 16204 bytes