Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd96bee428cfa8c4…

MALICIOUS

PDF

50.1 KB Created: 2020-08-10 14:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63db047ca3926a9358482c475697031e SHA-1: f33a424efdb1e2eac444846885017460e47e7790 SHA-256: cd96bee428cfa8c494408f9682644253022fa1e3c97c147f05aebc4052901e37
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector infrastructure at ttraff.ru. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site for further exploitation or credential harvesting.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=advanced+excel+training+syllabus+pdf
    • http://files.morleylab.com/uploads/1/3/0/9/130969430/b1f6a5.pdf
    • http://files.twinlightterracecondos.com/uploads/1/3/0/8/130813409/5620897.pdf
    • http://files.catherinedouglasphotography.com/uploads/1/3/0/8/130874284/refeboxos-tuzamek-begumewubedef.pdf
    • https://cdn.shopify.com/s/files/1/0433/5435/7910/files/53547316411.pdf
    • https://cdn.shopify.com/s/files/1/0437/8660/0609/files/37428823701.pdf
    • https://cdn.shopify.com/s/files/1/0430/6052/7265/files/kijadadudaburugiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/liwula.pdf
    • https://cdn.shopify.com/s/files/1/0438/4463/2738/files/psychrometric_chart_dew_point.pdf
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/97217925700.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/zalivenijujutefixavo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/27337793965.pdf
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/lapijilipuvuleroturava.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/applied_partial_differential_equations_haberman_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/practical_management_science_5th_edition_solutions.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060e4.bin
32999c9969478b4663b659db8defe164ab424e3d43049d9fd559a9f96cab4489
pdf-font-stream PDF embedded font (sfnt) at offset 0x60E4 5452 bytes
font_01_sfnt_off00007381.bin
a8ba86b04f4efafe12cbf7271e180e1a87ce09021744413eafddbddf9b1a6fa2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7381 10820 bytes
font_02_sfnt_off0000987d.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940
pdf-font-stream PDF embedded font (sfnt) at offset 0x987D 16036 bytes
font_03_sfnt_off0000ace6.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xACE6 4324 bytes