Malicious PDF — malware analysis report

Static analysis result for SHA-256 88417962e2b9aedd…

MALICIOUS

PDF

70.6 KB Created: 2021-06-01 16:49:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 219a85ebf9f73cfa6aa4e2fac7d2e9ea SHA-1: e087eb26250ace73da3685149947e50ea1adcfe3 SHA-256: 88417962e2b9aedd413d191e9767de6935b39f8f83d738eac95fd1aeb6d3fa72
154 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a site offering game downloads, suggesting a phishing or malware distribution lure. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the PDF structure strongly suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5956

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://pixomot.ru/pbw?utm_term=dynasty+warriors+6+psp+iso+download
    • https://xotikavetaj.weebly.com/uploads/1/3/4/8/134861849/jifibofu.pdf
    • https://gebifulud.weebly.com/uploads/1/3/0/7/130775692/vitaduviketowawusar.pdf
    • https://tejebufu.weebly.com/uploads/1/3/4/3/134353082/buxijekuparev.pdf
    • https://suvedezu.weebly.com/uploads/1/3/1/3/131379937/dopizatenaxifon.pdf
    • https://talurepif.weebly.com/uploads/1/3/4/6/134603846/nikabaz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9aac76ef-d01e-43f2-8c24-04a9a53671d0/96950819592.pdf
    • http://lijegazoz.pbworks.com/f/is_shein_xl_true_to_size.pdf
    • http://dipoziw.pbworks.com/w/file/fetch/144451566/pradhan_mantri_awas_yojana_pune_application_form.pdf
    • http://ziduzobif.pbworks.com/w/file/fetch/144454542/salidaso.pdf
    • https://uploads.strikinglycdn.com/files/1b95865c-8436-45e8-be46-d31d9944545a/samsung_ml-2510_printer_driver_for_mac.pdf
    • http://jifesepapo.pbworks.com/f/mabagevogetixewoga.pdf
    • https://uploads.strikinglycdn.com/files/3c979ec7-fbb3-46a6-8b6b-6e2a72f0fdff/time_travelers_wife_book_vs_movie.pdf
    • http://giwupiraride.pbworks.com/w/file/fetch/144465072/xopamilatewinox.pdf
    • https://uploads.strikinglycdn.com/files/be9fd28a-084a-4609-8709-75486584fcd6/39553797527.pdf
    • https://uploads.strikinglycdn.com/files/c333fe14-b8ca-4295-9562-1e460b02da2c/basax.pdf
    • https://uploads.strikinglycdn.com/files/06ecd067-fe90-4e0f-af27-e8d688c1eedf/washington_redskins_cheerleaders_roster_2014.pdf
    • https://uploads.strikinglycdn.com/files/d67de6c5-9df9-48dd-a160-78eb8f7d320f/fupakirag.pdf
    • https://uploads.strikinglycdn.com/files/28ff8225-0cea-4cbd-81dc-63610ffa6457/what_does_the_bible_say_about_born_blind.pdf
    • https://uploads.strikinglycdn.com/files/c5841751-ebb8-4adf-a871-e592dcf85238/mevobav.pdf
    • https://uploads.strikinglycdn.com/files/f37a7403-4f3f-4546-b65d-f8658bd98fe6/vikosapojobivajulolotigo.pdf
    • https://uploads.strikinglycdn.com/files/3df53a81-e750-4699-9fd6-78dddbb9028a/galojeb.pdf
    • http://xoxafepapesu.pbworks.com/w/file/fetch/144424110/how_to_stop_indesit_dryer_mid_cycle.pdf
    • https://uploads.strikinglycdn.com/files/03e04fff-c8b0-481b-b177-32e5bef29999/kanger_evod_1000mah_battery_charger.pdf
    • http://sepaxebi.pbworks.com/f/linear_algebra_and_differential_equations_using_matlab.pdf
    • http://savavaze.pbworks.com/w/file/fetch/144454881/84253370896.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de2d.bin
bcd77e3d284230e9b7b56e7b99f39b705c26d54913840831f32ade57ef5f658e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2D 4972 bytes
font_01_sfnt_off0000ef2c.bin
6ba188044e1aa5325f05be458d4880bc14d5007df93df999a46ef4c81c1ffc62		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2C 10428 bytes

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