Malicious PDF — malware analysis report

Static analysis result for SHA-256 47cb2ef0524eae83…

MALICIOUS

PDF

40.1 KB Created: 2020-09-06 01:12:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 518ba57416b4167a0e50f1805c6ff870 SHA-1: 181204dfdad175d20988b694894dc2afc4756729 SHA-256: 47cb2ef0524eae83e6e9ea6b385a3ce9f1433cf7e69764f62267143c2b357a6f
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.me/wix?keyword=bang+olufsen+beogram+rx2+turntable+manual'. The document body, though partially corrupted, contains text suggesting it is a manual for a 'Bang olufsen beogram rx2 turntable', likely a lure to encourage clicks. The presence of a 'download button' heuristic further supports the idea of a deceptive call to action.

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.me/wix?keyword=bang+olufsen+beogram+rx2+turntable+manual
    • https://cdn.shopify.com/s/files/1/0432/5628/3296/files/16489121192.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/51735435521.pdf
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/selemiripaxeguxuwibanatos.pdf
    • https://cdn.shopify.com/s/files/1/0438/0157/5586/files/ending_consonant_blends_worksheets_free.pdf
    • https://static.usrfiles.com/ugd/d954c5_458b9eda96cb426fa946222c6514d9e6.pdf
    • https://static.usrfiles.com/ugd/db93e9_d01eb1f21f7c4b4eb58f3a00599c3ed3.pdf
    • https://static.usrfiles.com/ugd/a76634_fe42699ea64b4c3ab2592aea36bbdb3b.pdf
    • https://cdn.shopify.com/s/files/1/0433/8476/6620/files/potujukiwawapajavosunit.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/safuvafofejanid.pdf
    • https://cdn.shopify.com/s/files/1/0464/5624/2344/files/19870520179.pdf
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/sownik_angielski_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/95053299034.pdf
    • https://cdn.shopify.com/s/files/1/0436/3390/1726/files/18954648474.pdf
    • https://cdn.shopify.com/s/files/1/0461/1617/6036/files/ejercicios_de_area_y_perimetro_de_un.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_off00005658.bin
a922a80ad00c052d9ee8ac09666121c4e43e3acd17ce52dad5b3a8ab9760684b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5658 5476 bytes
font_01_sfnt_off000068f3.bin
f5a20bfa803d012a04e8aa707e6e57381cb7d045182a74939d716a32d508016f
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F3 13652 bytes