Malicious PDF — malware analysis report

Static analysis result for SHA-256 63f492757cfe4392…

MALICIOUS

PDF

55.8 KB Created: 2021-03-23 23:47:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f18e10d98f2ecb076cd3008e0920970 SHA-1: d5a2d45a1ddbd69abb4cf0e183bbfd7f3daf1ba9 SHA-256: 63f492757cfe4392e703afc526756f953ced05e2a1f4166935992de345ab8dd9
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to trick users into clicking an embedded URI. The presence of numerous external links, including one to fokemale.ru, suggests an attempt to redirect users to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6955

Heuristics 5

  • 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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 55 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://fokemale.ru/award?keyword=arany+j%25C3%25A1nos+toldi+pdf
    • http://witaseru.iblogger.org/31009056743.pdf
    • http://rusefogotomik.iblogger.org/8004969440.pdf
    • http://rixuliketasaban.mywebcommunity.org/vubixalinepibovufujina.pdf
    • http://wuwudikosegukem.mypressonline.com/61346611599.pdf
    • https://xurarasetar.weebly.com/uploads/1/3/4/0/134096945/rezuxinizikir_xasesa_xaboninofefox_goxisasemut.pdf
    • https://duwatazajopi.weebly.com/uploads/1/3/4/2/134235013/xivados.pdf
    • https://taxufutusa.weebly.com/uploads/1/3/4/5/134514166/9779651.pdf
    • https://uploads.strikinglycdn.com/files/ccba3bdf-fcf4-4d74-bd60-96c2218c99f3/how_to_figure_out_dipole_moment.pdf
    • https://uploads.strikinglycdn.com/files/44576897-905a-49c6-8d5d-e1f09cde96bd/gmat_coaching_institutes_in_delhi.pdf
    • http://babokad.epizy.com/zejaduv.pdf
    • https://uploads.strikinglycdn.com/files/26414470-e701-4c54-bdce-44cbf7214c26/sum_david_eagleman_summary.pdf
    • http://zifixatef.rf.gd/kufepuluwonowabizat.pdf
    • https://uploads.strikinglycdn.com/files/677e1ce9-9712-4b25-8409-bea7929ace06/dnd_5e_fighter_level_guide.pdf
    • https://uploads.strikinglycdn.com/files/3a7b77ab-c266-4bb8-bef9-401f9f59149c/lapaxamumogipo.pdf
    • http://lejibunigazaxa.epizy.com/79271274960.pdf
    • https://uploads.strikinglycdn.com/files/81a9f5c1-ee53-4807-8397-dac0b3f2536d/how_long_did_the_great_depression_last_in_australia.pdf
    • http://vomujajimulewut.rf.gd/kojijap.pdf
    • https://uploads.strikinglycdn.com/files/452c8a18-d41f-4d97-9284-826b4fda2702/arizona_master_gardener_manual.pdf
    • https://uploads.strikinglycdn.com/files/24cbaf39-9319-4552-9d5c-81c8bcdecd9b/how_do_i_turn_on_my_hp_touch_screen.pdf

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