Malicious PDF — malware analysis report

Static analysis result for SHA-256 488184ea63205862…

MALICIOUS

PDF

29.6 KB Created: 2020-10-27 20:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99d26c6491f52a833d8964ef998f14d4 SHA-1: 8ad9da71e3ea8078237a0b763d22e11b0a4a4eca SHA-256: 488184ea632058623d0df42b705d63b75323f42ef3395c2ca067690da12d17ad
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious by an ML classifier and contains a large number of external links, characteristic of a link farm. One of these links directs to a known malicious redirector, suggesting an attempt to compromise users through a deceptive link. The document body, though heavily obfuscated, contains the malicious URL, reinforcing its role in the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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=launch+x431+v%252B+%2526+heavy+duty+module
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/96288e3c0345855.pdf
    • https://xuxefakeni.weebly.com/uploads/1/3/4/2/134234722/lilufaba_tagiwusirizomop_nafoginu.pdf
    • https://xijoxamapapi.weebly.com/uploads/1/3/4/3/134337958/73d3a331bbaff.pdf
    • https://tovalowu.weebly.com/uploads/1/3/4/3/134375552/rulubibobeken.pdf
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/6304031.pdf
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/palupelajavo.pdf
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/f076422f004.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0502/0434/4481/files/setup_vpn_android_guide.pdf
    • https://cdn.shopify.com/s/files/1/0493/7187/3446/files/fuzegeganot.pdf
    • https://cdn.shopify.com/s/files/1/0438/3395/0358/files/what_is_wcw_on_instagram.pdf
    • https://cdn.shopify.com/s/files/1/0500/0629/4688/files/bedobelinakokemasetavu.pdf
    • https://s3.amazonaws.com/pusori/journaux_algeriens_aujourd_hui_en.pdf
    • https://s3.amazonaws.com/wajibile/basevogosovixatejiwexuk.pdf
    • https://s3.amazonaws.com/nezanurugega/66854289154.pdf
    • https://s3.amazonaws.com/zirojopemup/kekawesokoko.pdf
    • https://s3.amazonaws.com/jinabisura/16791106492.pdf
    • https://cdn.shopify.com/s/files/1/0502/9668/4702/files/xuwuwubudimadut.pdf
    • https://cdn.shopify.com/s/files/1/0494/6103/5202/files/rebel_galaxy_outlaw_mining_guide.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ee1.bin
706a14e8d366593f80692f6b7b3c71cefff7f9a1d5b6697f46335aa4c6d577ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE1 4956 bytes

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