Malicious PDF — malware analysis report

Static analysis result for SHA-256 398d38689ec9725b…

MALICIOUS

PDF

49.3 KB Created: 2020-08-31 06:38:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4862cd9aec0dd5cd4e006ec2d5a679f5 SHA-1: 42177fc1b4e2ffe4349ef595e8e9918a5fb27392 SHA-256: 398d38689ec9725b9f49b2969aa55c4fcdc7d68166ce0ab50ee03b20b8f7458a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL https://ttraff.com/wix?keyword=jane%252527s+fleet+command+manual is the primary indicator of this malicious redirection. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'Jane's fleet command manual', aligning with the redirector's keyword.

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/wix?keyword=jane%252527s+fleet+command+manual
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/rita_form_17.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/leraraxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/chinese_to_english_translator.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/cambridge_business_english_activities.pdf
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/3704236628.pdf
    • https://static.usrfiles.com/ugd/19ce5d_688ac087392c4b8e8ca7cceae991747a.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a102dd05cd640c09c166b36a8101432.pdf
    • https://static.usrfiles.com/ugd/b8c837_3cae11349c0f48c1aa905d019fc1a3b5.pdf
    • https://static.usrfiles.com/ugd/05900a_ed237d5ee4a9426599b2a1b0d2c32947.pdf
    • https://static.usrfiles.com/ugd/5926b4_c7198cb2e88140858d481160285b95d5.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6045/files/ireport_tutorial_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0438/1478/1088/files/92976110203.pdf
    • https://cdn.shopify.com/s/files/1/0432/3078/9800/files/fundamentos_psicologicos_da_educao.pdf
    • https://cdn.shopify.com/s/files/1/0439/4293/6731/files/1006630148.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/revesosazog.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/happy_birthday_sister_gif.pdf
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/koviregelikozixejafojora.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/23902906706.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/shawn_mendes_senorita_piano_sheet_music.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_off00007360.bin
61d05dd47c69c834aa41ee208da1615b40f9fa455616f99eca63609a68041d9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7360 4928 bytes
font_01_sfnt_off00008413.bin
d9bf32f41093cf5837ee442521cbecddd1540b8202a00018abc590f8c4fc4502
pdf-font-stream PDF embedded font (sfnt) at offset 0x8413 11944 bytes
font_02_sfnt_off0000a9ed.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9ED 4324 bytes