Malicious PDF — malware analysis report

Static analysis result for SHA-256 348e7f66dc41501f…

MALICIOUS

PDF

58.2 KB Created: 2020-11-14 04:57:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6db4673d47d6f9db39b93c5008bfbee3 SHA-1: 54a07a0dc05b9ec77455fb5b7de00b26a18a5e2b SHA-256: 348e7f66dc41501faa0411c63a22b4761b6e28fcbca5b2c809269ddb5c6ee7d5
154 Risk Score

Malware Insights

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

This PDF document contains numerous external links, characteristic of a link farm designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains text suggesting a lure related to movie streaming, likely to entice clicks on these links. ClamAV detection and ML classification confirm its malicious nature, indicating it's likely a phishing or malware distribution tool.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7599

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?utm_term=nonton+film+subtitle+indonesia+fifty+shades+of+grey
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/d02f4832501683.pdf
    • https://ziwavolenexajid.weebly.com/uploads/1/3/4/5/134503628/pubuponuguji_solug.pdf
    • https://cdn-cms.f-static.net/uploads/4375517/normal_5f9a6aa0b3d2d.pdf
    • https://cdn-cms.f-static.net/uploads/4459654/normal_5fa2381240e82.pdf
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/lupasufevazetamu.pdf
    • https://cdn-cms.f-static.net/uploads/4384464/normal_5fa892d2a1c02.pdf
    • https://cdn-cms.f-static.net/uploads/4369920/normal_5fac4dae4044b.pdf
    • https://cdn-cms.f-static.net/uploads/4377909/normal_5f91c172e345c.pdf
    • https://zozolesib.weebly.com/uploads/1/3/4/6/134631165/mikevaduxemegi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/likadojivivofu/romekimopijazamuxelu.pdf
    • https://s3.amazonaws.com/sugaguxagu/41476305744.pdf
    • https://s3.amazonaws.com/rovikibixu/92450932851.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5ee.bin
5e92d7a83f9a16dddfcb583154441dd269c6d1170d44bb7c0158287f5c3de0ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5EE 5532 bytes
font_01_sfnt_off0000c8a1.bin
b5b80bbddfa55049788bc27910a30b372c05ff671bc9b47f98c5fca644076d96		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A1 10320 bytes

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