Malicious PDF — malware analysis report

Static analysis result for SHA-256 3206694213570cb1…

MALICIOUS

PDF

42.4 KB Created: 2020-08-13 03:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 823c0155c5964f4489c5d0976d0d9ffa SHA-1: 22dc8a64bb1cd9900785ebdddac508d2f3190b8b SHA-256: 3206694213570cb14b7e65460cc7d2d6d37e208f54b3da6c446c42e28a467efd
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=employee+transfer+letter+sample+pdf`. This indicates a social engineering lure, likely to trick users into downloading further malware. The document also contains a large number of external PDF links, many hosted on `cdn.shopify.com`, suggesting a link farm for SEO poisoning or to obscure the true malicious destination. No scripts were extracted from this sample.

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=employee+transfer+letter+sample+pdf
    • http://fifiwuse.dirksalomon.de/uploads/1/3/2/6/132681477/luxivoloxigepej_ziwaxelug_muburozenogixek_jazikal.pdf
    • http://vexaka.thompsonphoto.co.uk/uploads/1/3/0/7/130775897/f5743f708.pdf
    • http://files.meditation-magic.com/uploads/1/3/0/7/130776611/0de38d03d3.pdf
    • http://files.shodacars.com/uploads/1/3/1/0/131071035/mujig-podasavikuxiro-jolijifajene.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/destiny_2_steam_controller.pdf
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/minecraft_rpg_server_with_classes_and_quests.pdf
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/44740093143.pdf
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/burenevinuwobatovumusovi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0678/files/tokid.pdf
    • https://cdn.shopify.com/s/files/1/0435/8776/4387/files/chaotic_card_game_rules.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdf
    • https://cdn.shopify.com/s/files/1/0439/1878/6728/files/tabeer_ur_roya_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45235944591.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/fininazuzelozi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/actualizations_stewart_emery.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/vujimosapomowubepuku.pdf
    • https://cdn.shopify.com/s/files/1/0431/0925/3286/files/nerufagoxokegozis.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_off00006346.bin
977852ad10ea9e0a9a4b00e53270cbcc6ce50ee996512bd15e9efe515d1c6f2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6346 5244 bytes
font_01_sfnt_off0000750a.bin
455df490baf5e6c5b28c87be7e5229637295384e159e3a126e25c8a41825b68d
pdf-font-stream PDF embedded font (sfnt) at offset 0x750A 12540 bytes