Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bb1bf69e131d430…

MALICIOUS

PDF

84.7 KB Created: 2020-09-05 15:42:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c453ee93000aec315defc6a48a3b551 SHA-1: d4ac00349e3965489f7dd313ae4492e1b3f5585a SHA-256: 3bb1bf69e131d4309dbc4222aa89d30ffd14057ab06c894e714601e8d14489d4
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/wix?keyword=dinosaur+bodyweight+training+pdf+free'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to manipulate search engine results. The presence of a 'download button' lure further supports the malicious intent of redirecting users to a potentially harmful site.

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.club/wix?keyword=dinosaur+bodyweight+training+pdf+free
    • https://cdn.shopify.com/s/files/1/0430/3588/5721/files/poxun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9931/5619/files/42508706255.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/bureaucratic_leadership_style_advantage_and_disadvantage.pdf
    • https://cdn.shopify.com/s/files/1/0464/6132/1384/files/cisco_asa_5516_firepower_configuration_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/4952/4127/files/zutawisenad.pdf
    • https://static.usrfiles.com/ugd/135178_9d4020f9a1114461b307405adbe483fe.pdf
    • https://static.usrfiles.com/ugd/8cbfce_a6ae25d168014c83bce82b2830c70164.pdf
    • https://static.usrfiles.com/ugd/82d61e_f0b3e64001024a8daace8c03b9d64538.pdf
    • https://static.usrfiles.com/ugd/a48928_db1cdf48a1734582ae0e1dd5ecab3618.pdf
    • https://cdn.shopify.com/s/files/1/0466/4800/0677/files/tableau_cuisson_basse_temperature_le.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/45963648626.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/lixusananuvofedepowa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91025233068.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/el_accidente_nuclear_de_chernobyl.pdf
    • https://static.usrfiles.com/ugd/fbccce_e4ad7068649d428297824d6529f19471.pdf
    • https://static.usrfiles.com/ugd/cac9e4_305fabbd6c5440aa8826aa3f0389f256.pdf
    • https://static.usrfiles.com/ugd/510a18_24a8ef225733470983173f76054f7a65.pdf
    • https://static.usrfiles.com/ugd/3aca14_9a9042c7bb3a48e79b0763bd583048d9.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/
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/burea

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff67.bin
5ede1df053d9163d2f85dfd95d4299d285a61e2f738dd24bafa83cf51e24743a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF67 5604 bytes
font_01_sfnt_off0001128a.bin
a88c8e643ec1f2922f67413f3118b93e4338ac01b0a4b41bae785992e319415f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1128A 16376 bytes