Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a246956bf80433…

MALICIOUS

PDF

49.5 KB Created: 2020-08-07 14:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c3e2e420372af79c8cfdbfbfebed3cd SHA-1: af466df8a2323b50b3abc382131c11964f67e47a SHA-256: b1a246956bf804333828322a90626c76c8e07c4b3064ba7badd691dccf72cf8a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.ru/wb?keyword=bonavita%20metropolitan%20manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0430/6694/9786/files/fewobexeta.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting the primary intent is to redirect the user to malicious infrastructure.

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.ru/wb?keyword=bonavita%20metropolitan%20manual
    • http://files.rdfishingtackle.com/uploads/1/3/1/3/131378776/c92778.pdf
    • http://files.firstaidmissionsofhope.com/uploads/1/3/1/8/131871633/823741c7740.pdf
    • http://files.lacykcampbell.com/uploads/1/3/1/4/131406391/6730779.pdf
    • http://files.fpclewisburg.org/uploads/1/3/1/0/131071166/631061.pdf
    • http://files.thevamcommanders.com/uploads/1/3/0/7/130776304/5022030.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/fewobexeta.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/43374872570.pdf
    • https://cdn.shopify.com/s/files/1/0432/5628/3296/files/vavuno.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdf
    • https://cdn.shopify.com/s/files/1/0433/1945/9998/files/nokiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8675/7536/files/zemoke.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8646/files/alternariose_de_la_pomme_de_terre.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/47042630333.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4533/files/87849656313.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/jurnal_biosistematika_tumbuhan.pdf
    • https://cdn.shopify.com/s/files/1/0428/8980/5983/files/gumegawawamozokugupozij.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/16990576595.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_off00007622.bin
dc4bbb0eb4153a308457cf5a311c1457c1fca6926019fc6613f71b2a8e063927
pdf-font-stream PDF embedded font (sfnt) at offset 0x7622 4776 bytes
font_01_sfnt_off0000863e.bin
61786b143d9440282bbdef3b8beb19d8e264db96484db2b34b9ff4966dff34b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x863E 10728 bytes
font_02_sfnt_off0000aafb.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xAAFB 4324 bytes