Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de4d9ff9b0e4028…

MALICIOUS

PDF

63.7 KB Created: 2021-06-13 18:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29ba66333c492044bd2d7c8520fa1872 SHA-1: 857514a40b1f18ce7192bb032f069966d34be2f9 SHA-256: 7de4d9ff9b0e4028b70ca81abb027aeff15e7f5116ebc5f47c86afe56a2c8f03
154 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are to websites that appear to be part of a link farm or SEO manipulation scheme. One prominent URL, 'https://catamma.ru/pbw?utm_term=hacksaw+ridge+full+movie+download+filmyzilla', suggests a lure related to downloading a movie. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8428

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://catamma.ru/pbw?utm_term=hacksaw+ridge+full+movie+download+filmyzilla
    • https://cdn-cms.f-static.net/uploads/4420930/normal_60438e6276c76.pdf
    • https://zulozagadome.weebly.com/uploads/1/3/4/3/134318764/2730f5f9bcb13.pdf
    • https://kanabebivuze.weebly.com/uploads/1/3/4/4/134457147/fozam.pdf
    • https://woxufojobufuv.weebly.com/uploads/1/3/0/7/130739326/690097.pdf
    • https://cdn-cms.f-static.net/uploads/4384150/normal_602a3f7485611.pdf
    • https://lotuvimipel.weebly.com/uploads/1/3/0/7/130739731/luragisopufu-sutezax.pdf
    • https://dunulukega.weebly.com/uploads/1/3/4/4/134442930/tufojad.pdf
    • https://static.s123-cdn-static.com/uploads/4369150/normal_5ffe20b640baf.pdf
    • https://static.s123-cdn-static.com/uploads/4382405/normal_5feb8caba2f6a.pdf
    • https://cdn-cms.f-static.net/uploads/4463788/normal_60196145513ca.pdf
    • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/zezuj_zejanetuta_napib_nikopi.pdf
    • https://givebuzuwipagin.weebly.com/uploads/1/3/0/7/130775776/gedafabab.pdf
    • https://cdn-cms.f-static.net/uploads/4408170/normal_60c4fa856c15b.pdf
    • https://cdn-cms.f-static.net/uploads/4449990/normal_600e498776735.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ac4ee98f-a155-4fa7-b765-2fee22fa46c5/2013_lexus_rx_350_tokunbo_price_in_nigeria.pdf
    • https://uploads.strikinglycdn.com/files/ca049e53-0ec2-4e9c-8780-2132017dd631/types_of_special_needs.pdf
    • https://uploads.strikinglycdn.com/files/659530f0-b01e-46d1-9584-588e096e373c/towerudixifukar.pdf
    • https://uploads.strikinglycdn.com/files/f37b00f3-c02c-45cf-bfdb-8dd3c1b4dd29/mbti_compatibility_percentage.pdf
    • https://uploads.strikinglycdn.com/files/9e1ab72e-18cd-45a6-b0ac-901fea223a02/filipino_alphabet_chart_with_pictures.pdf
    • https://uploads.strikinglycdn.com/files/8ca2a394-024d-44ce-950e-f48fa5cbe70e/jurebowafatibexuzipok.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dae4.bin
44331f215232a4b760254edac3ed7d0e101b986d23263fe21e25bfa2b12cd7f4
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE4 5672 bytes