Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff169f624dd66af…

MALICIOUS

PDF

69.9 KB Created: 2021-03-27 17:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b9f557f7ef8620cfa8a626e6d3f5229 SHA-1: b4f50cbede06cb43bda5badac90d392f229609ae SHA-256: 9ff169f624dd66afd55782c661a81ffd9c4eb56e4fe3a9b443cc31fb565e2c21
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 part of a link farm designed to appear as legitimate download pages. The primary malicious URL, 'https://dugedepap.ru/strik?utm_term=in+the+mood+for+love+full+movie+download+in+english', suggests a phishing or malware distribution attempt disguised as a movie download. The ClamAV detection and ML classifier further support its malicious nature, indicating it is likely a phishing or trojan distribution document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9649

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://dugedepap.ru/strik?utm_term=in+the+mood+for+love+full+movie+download+in+english
    • http://veruvipavopa.getenjoyment.net/what_happens_to_most_living_things_after_they_die.pdf
    • http://bugiwuxad.medianewsonline.com/28832528298.pdf
    • https://nulabelavomeviz.weebly.com/uploads/1/3/1/4/131413951/vibiref.pdf
    • https://zafasasuk.weebly.com/uploads/1/3/4/7/134713251/fudidolimalav.pdf
    • http://zitalogeloluwiw.mygamesonline.org/energia_elica_como_funciona.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f3ea461b-95fd-44cf-949c-5afda193840f.filesusr.com/ugd/a48928_a2a850b7403041d09e8ecff170342955.pdf?index=true
    • https://s3.amazonaws.com/julexekubaj/zupoxivufelovo.pdf
    • https://6acf0ca1-aa41-4771-8b91-54baff69ee7f.filesusr.com/ugd/7d1dc9_32cfe4ebecba475fa70765108808b9a0.pdf?index=true
    • https://s3.amazonaws.com/vesubodufisi/should_you_do_glute_activation_before_running.pdf
    • http://vedixemalirugi.atwebpages.com/caracteristicas_de_la_familia_araceae.pdf
    • https://s3.amazonaws.com/zodererezuzuxi/does_walmart_exchange_sodastream_co2.pdf
    • https://s3.amazonaws.com/nonabafat/1994_oldsmobile_cutlass_ciera_owners_manual.pdf
    • https://s3.amazonaws.com/minabiwa/51352098148.pdf
    • https://s3.amazonaws.com/fofeguj/46792470070.pdf
    • https://s3.amazonaws.com/wekibik/how_to_read_button_accordion_sheet_music.pdf
    • https://s3.amazonaws.com/kelukakeb/38750171814.pdf
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_28bf4c33874a426490dd628bedb8e3c4.pdf?index=true
    • https://ff5ab256-a407-4697-91b9-141751226614.filesusr.com/ugd/4205e4_c925e890a32649eb83c72a6635a91a4c.pdf?index=true
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e999.bin
61587ce1efdccb77c9fa11c313cf70531af6400b0b172e7533232cac19ea0821		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE999 5408 bytes

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