Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2abb079d5d24204…

MALICIOUS

PDF

63.8 KB Created: 2021-03-27 19:48:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0dcc6da481295290be9491bebfbadc02 SHA-1: 2ac76eee996a211bf59f7b8b8cbc2f0eeb20efbc SHA-256: f2abb079d5d24204d5c98a6ffe214cc2f14404e23c2a666b6f4a4d468bb2c6be
154 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing or SEO manipulation scheme, as indicated by the PDF_SEO_LINK_FARM heuristic and numerous external URLs. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were directly extracted, the presence of embedded URLs suggests an attempt to redirect users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7258

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/award?keyword=nutricion+parenteral+pdf+pediatria
    • https://cdn-cms.f-static.net/uploads/4369327/normal_5fe9fe0030a22.pdf
    • https://setibadumizokeg.weebly.com/uploads/1/3/4/8/134880372/defedudinometo.pdf
    • https://static.s123-cdn-static.com/uploads/4486521/normal_5ff69dd3693f6.pdf
    • https://cdn-cms.f-static.net/uploads/4471095/normal_603c408319d28.pdf
    • http://microbladingeyebrowsdallastx.com/what_is_the_best_fruit_and_vegetables_to_eatmgyh1.pdf
    • https://buralekareze.weebly.com/uploads/1/3/4/3/134326789/gonagofuvute.pdf
    • https://zisefedid.weebly.com/uploads/1/3/4/7/134767142/8317941.pdf
    • http://zuduwamani.mypressonline.com/the_beatles_complete_scores_mega.pdf
    • https://vuwuzujos.weebly.com/uploads/1/3/2/7/132712237/7129228.pdf
    • http://xomunuxeju.sportsontheweb.net/35811099905.pdf
    • https://kufesivewafe.weebly.com/uploads/1/3/1/3/131384244/bamovofuseso.pdf
    • http://redit.fun/defowavavusaljjpm4.pdf
    • https://static.s123-cdn-static.com/uploads/4384831/normal_5ffe9b0d00bda.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bivanud/63917105848.pdf
    • https://5e9816b5-e261-4a84-a5c7-594b6999e1c8.filesusr.com/ugd/eb2f7d_b42ba5dba2d949f18cd86df70f1c1dc9.pdf?index=true
    • https://e18e6c05-101e-4f41-9c4d-f518aea09dbb.filesusr.com/ugd/7972b3_1f8af0baed4e457180646f08042a8e66.pdf?index=true
    • http://dozopedatofol.atwebpages.com/pudovetotuvetixavatafabej.pdf
    • https://s3.amazonaws.com/tobito/60930244088.pdf
    • https://181f3bdf-810f-4c34-abb3-9f3362228cd6.filesusr.com/ugd/30415f_e90f3846ddbb4a70b3f1b4478cceecc5.pdf?index=true
    • https://e8c82854-2a0b-4c0f-82de-bac600ce06e6.filesusr.com/ugd/d017d5_706bc2c1c8954f0caa0c6cff02e1fc73.pdf?index=true
    • https://510b81f6-be4e-4e40-9acf-3f60af495837.filesusr.com/ugd/5f226b_6468ee538bfe47b38e118ebe89da3433.pdf?index=true
    • http://padusij.onlinewebshop.net/beats_by_dr._dre_-_solo_pro_wireless_noise_cancelling_on-ear_headphones_-_black.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1c1.bin
04050aafa401b5cc0821be438424824fc156ade133e4a3348db5809f20cba6ae
pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C1 2192 bytes
font_01_sfnt_off0000eba7.bin
cdeb3546e2b4f111d202df06699b519da4639317e7a87f5340e3c43b22b7b690
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA7 4824 bytes