Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc48125c58d0076…

MALICIOUS

PDF

50.7 KB Created: 2020-08-06 23:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d742653de2f3d68bd475eb5fa89693a6 SHA-1: 190b2a80006541253113c3daa6dca1e012171476 SHA-256: 2cc48125c58d00760b4d426a6e7f14128e8c5957a4dcfbfdc7380ecacf6c4f6e
128 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, pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to an economics syllabus and includes the same malicious URL. This suggests a social engineering lure to trick users into clicking the link, which then redirects to malicious infrastructure.

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.com/wb?keyword=class%2012%20economics%20syllabus%202019-20%20pdf
    • http://files.leverageleadership.org/uploads/1/3/1/8/131871618/fatopoxopovazib.pdf
    • http://files.icater2youtravel.com/uploads/1/3/0/7/130739986/saninaja_dikesudes.pdf
    • http://files.raisabreslava.com/uploads/1/3/1/3/131378776/rimezulup.pdf
    • http://files.larklandsroofing.co.uk/uploads/1/3/1/3/131379940/ninefodiv.pdf
    • http://files.kaufmanautogroup.com/uploads/1/3/0/7/130775639/foxakipa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/teralegekogabipesovosovos.pdf
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/bridge_to_terabithia_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0446/6160/4505/files/zoo_tycoon_complete_collection_download_full.pdf
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/83640988785.pdf
    • https://cdn.shopify.com/s/files/1/0429/2460/5599/files/tb_lymph_node.pdf
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/bayesian_reasoning_and_machine_learning_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/allan_kardec_book_of_selected_prayers.pdf
    • https://cdn.shopify.com/s/files/1/0432/7132/3808/files/winuzazumuzilavasifososa.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/44395829282.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/66576735315.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/norumugukuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/50154199300.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_off0000765f.bin
329a1d7c453fb9aefa9795c266e0f28aa3b2ddedca5cdbe06c3ea6548c738ad2
pdf-font-stream PDF embedded font (sfnt) at offset 0x765F 5868 bytes
font_01_sfnt_off00008a45.bin
d2d10b6b0c668cf26faa9347c7054f8580c7eefa5cb7aecda2a4fba74bd025f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A45 6068 bytes
font_02_sfnt_off000099f6.bin
c91d5b1980be2230fc470f9251e73b940dc3ea7976f77738c4030807025fd90e
pdf-font-stream PDF embedded font (sfnt) at offset 0x99F6 10256 bytes