Malicious PDF — malware analysis report

Static analysis result for SHA-256 b34aa08f567b7aa3…

MALICIOUS

PDF

118.6 KB Created: 2020-10-29 06:32:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 792b025855611833bb932501f1c033af SHA-1: db4b1a6d9dfb9a2f1fe9a9ee7a49fe1276c2aee8 SHA-256: b34aa08f567b7aa393305e091b75448d1b3bf5a7c2988827737033c6f9d2ec18
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the same malicious redirector. The presence of a large number of external links suggests an attempt to farm traffic or distribute malicious content, aligning with common phishing or scam tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9851

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://gettraff.ru/aws?keyword=14+touch+points+in+marketing+communications
    • https://cdn-cms.f-static.net/uploads/4369142/normal_5f8a213404dae.pdf
    • https://cdn-cms.f-static.net/uploads/4370052/normal_5f9611bae0bf2.pdf
    • https://cdn-cms.f-static.net/uploads/4387424/normal_5f93c891333d6.pdf
    • https://cdn-cms.f-static.net/uploads/4373797/normal_5f95d7268d1b0.pdf
    • https://cdn-cms.f-static.net/uploads/4384167/normal_5f8c0373a9824.pdf
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8746db78cb8.pdf
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f87b6b4c8abd.pdf
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5f959a00eb613.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/najubu/77294563695.pdf
    • https://s3.amazonaws.com/zifozujiwi/bodamobakafon.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9548/files/cara_merubah_rotasi_pada.pdf
    • https://s3.amazonaws.com/subud/market_equilibrium_in_economics.pdf
    • https://uploads.strikinglycdn.com/files/8d7d7909-c722-4441-9b4b-577b21d5c2e2/lusisinifulefuwurefaveku.pdf
    • https://cdn.shopify.com/s/files/1/0500/5760/9374/files/broccoli_mushroom_quiche_food_network.pdf
    • https://s3.amazonaws.com/jarawaxanivu/68196099531.pdf
    • https://s3.amazonaws.com/febopa/speed_velocity_and_acceleration_problems_with_answers.pdf
    • https://s3.amazonaws.com/tetazino/18809899034.pdf
    • https://s3.amazonaws.com/fizaxo/fagazepokaxozow.pdf
    • https://s3.amazonaws.com/befarekogol/79848650884.pdf
    • https://cdn.shopify.com/s/files/1/0480/6190/7108/files/sport_racing_game_download_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0492/3211/7916/files/smith_vantage_mips_xl.pdf
    • https://uploads.strikinglycdn.com/files/3808c1fd-db47-4265-93f0-3f7f49a7f268/amos_25_software_free.pdf
    • https://s3.amazonaws.com/tapexiw/78496803088.pdf
    • https://uploads.strikinglycdn.com/files/3516a18e-83f3-4295-93ad-392e5e7d8fb3/kosetorazakonasuwusu.pdf
    • https://cdn.shopify.com/s/files/1/0501/0010/9507/files/sosuziselilex.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ccd8.bin
d8e3bfebccb04b7437d939c3e0bf83090671c9508b2c6f954f6d32aa3b1d9224
pdf-font-stream PDF embedded font (sfnt) at offset 0x1CCD8 5424 bytes