Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ddef23c8bcb3e33…

MALICIOUS

PDF

40.2 KB Created: 2020-08-24 14:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 622424c0ca04e5dfcc2d6c032c2be28f SHA-1: bb8edcf701ad3b923c4efa32ef03aa0b63975a75 SHA-256: 4ddef23c8bcb3e3361c7ca46111c7a15313db8b3d491a3b82bb989f895697999
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, constituting a link farm. One of these links, 'https://ttraff.com/pify?keyword=bizzleberry+soraka+guide', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a lure to external content. No scripts were extracted, and the primary malicious activity appears to be redirection to a potentially harmful site.

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/pify?keyword=bizzleberry+soraka+guide
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdf
    • http://waxedopev.thecoachmensclubhouse.com/uploads/1/3/1/4/131454526/kawusuro_fotufuxolad_xizakifi_fudiwipof.pdf
    • http://files.susanfonger.com/uploads/1/3/0/7/130775292/1143451.pdf
    • http://fezezogim.cambridgesupervisiontraining.org/uploads/1/3/2/6/132681337/divef.pdf
    • http://files.excellenteagle.com/uploads/1/3/0/8/130814043/kinadotaw-samuvom.pdf
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/vagisudom.pdf
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/42944929433.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/42125843825.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/mumigiluk.pdf
    • https://cdn.shopify.com/s/files/1/0432/3603/2680/files/sorceress_guide_bdo.pdf
    • https://cdn.shopify.com/s/files/1/0456/8501/4687/files/ruxufemixuw.pdf
    • https://cdn.shopify.com/s/files/1/0448/7803/7159/files/zegegekametibazunodutaxox.pdf
    • https://cdn.shopify.com/s/files/1/0428/2764/5095/files/descendants_watch_online.pdf
    • https://cdn.shopify.com/s/files/1/0440/6493/1992/files/making_good_decisions_worksheet.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_off00004af8.bin
e77d17a952fca473b376435af89a91000406158c1370c16e97c82341ab66988a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF8 5092 bytes
font_01_sfnt_off00005c64.bin
b7516afc477bf35dba7532379f798818570c91e2654d3676674d95bd955ba191
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C64 13140 bytes
font_02_sfnt_off000085db.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x85DB 4324 bytes