Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae4ffb3bd1e256d4…

MALICIOUS

PDF

50.0 KB Created: 2020-08-25 13:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0d33aec61cd87697af9ff2d25630eae SHA-1: 8afc27c42b82809ea0e9dd923a506d7d3d5db55b SHA-256: ae4ffb3bd1e256d42b996f98469c38853dacc11e803f45670917d6d7e61330e4
130 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, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is further supported by the document body containing a similar URL. This indicates a likely phishing or malware distribution attempt disguised as a game download.

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.cc/pify?keyword=game+battleship+offline+terbaik+android
    • http://files.ibcphoenix.com/uploads/1/3/0/9/130969191/8871251.pdf
    • http://files.horvathspecialtyauto.com/uploads/1/3/1/4/131437683/6562346.pdf
    • http://files.theorchidblooms.com/uploads/1/3/1/3/131383892/e73bf.pdf
    • http://files.azkillerbeessoftball.com/uploads/1/3/0/8/130874518/jemizip.pdf
    • https://cdn.shopify.com/s/files/1/0438/2405/4432/files/rokifesepaponiledirujoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7742/6588/files/yahoo_search_engine_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0454/7041/7046/files/46781628153.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/kirby_green_greens_sheet_music_piano.pdf
    • https://cdn.shopify.com/s/files/1/0434/1301/2637/files/dozono.pdf
    • https://cdn.shopify.com/s/files/1/0433/3859/6511/files/kijuro.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/59283380261.pdf
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/rusilasezenuvibubumaxak.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/alfie_kohn_classroom_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/we_are_electric_song.pdf
    • https://cdn.shopify.com/s/files/1/0438/0341/0593/files/somugobi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/96625958065.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_off00008422.bin
5883446d8912d25cee27f2c6565cbf61053053f11ea3f7985905d8b0aee5f4ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x8422 5516 bytes
font_01_sfnt_off000096b6.bin
006e8835c9a98a6270f0568660cc6d579b9dc63fc57b18a7ac0250a4e906655a
pdf-font-stream PDF embedded font (sfnt) at offset 0x96B6 10468 bytes