Malicious PDF — malware analysis report

Static analysis result for SHA-256 614e5e33a9a19ff6…

MALICIOUS

PDF

80.8 KB Created: 2021-04-01 22:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f3d7d6135c743700bb519969719c0d SHA-1: 71069d503fdb99674b86728a3bfa7bcd865bd0a1 SHA-256: 614e5e33a9a19ff678879cf4dff48145a636b1c52a98c65cfa8b7d9f06df445b
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically the one pointing to 'bologen.ru', suggests a phishing or credential harvesting attempt disguised as an award or information delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://bologen.ru/award?keyword=biosynthesis+of+quinine+pdf
    • http://investmag.org/dell_optiplex_960_memory_specsbb5jo.pdf
    • http://5coupons.info/how_to_connect_plantronics_cs540_to_laptop0rbnq.pdf
    • http://poverkavoda.website/10668216541o3ex6.pdf
    • http://cabinetsop.xyz/somezapadusexenps6h.pdf
    • https://cdn.sqhk.co/zetanitanedo/g2jajiR/fivadekixoxidututu.pdf
    • https://cdn.sqhk.co/winelolibug/hcicogf/tor_browser_download_for_kali_linux_github.pdf
    • http://kismyketio.com/snap_on_2000_psi_electric_pressure_washer_manualq1pa2.pdf
    • http://springital.fun/374384683226fxaw.pdf
    • https://cdn.sqhk.co/bumogebiz/Hhefdqi/party_city_spiral_balloon_column.pdf
    • https://cdn.sqhk.co/nomitusibop/Cwiflhh/dragon_quest_8_hero_weapons.pdf
    • http://study-english-04.space/the_brief_wondrous_life_of_oscar_wao_free_downloadkkbgq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nagudo/bioresource_technology_reports.pdf
    • https://s3.amazonaws.com/banula/what_are_the_principles_of_prevention.pdf
    • https://s3.amazonaws.com/begijufadi/ruxoxopexafalawajoxano.pdf
    • http://lapetagalelan.myartsonline.com/17837895011.pdf
    • https://s3.amazonaws.com/jivamubug/argonautiche_valerio_flacco.pdf
    • http://mukanebesiva.atwebpages.com/62845296673.pdf
    • https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_d7c5056fdbdc40898edfcfeb0bd26860.pdf?index=true
    • https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_a26db247eb63404ba37e5417be1c361c.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc9f.bin
478f4c437d124104d09f50da1994b3858f02539b30f64ab66f3c5bb96db71d05
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC9F 5068 bytes
font_01_sfnt_off00010dec.bin
07e78edf76a52382c9d6a0abeff7610166b96d506b6a28bfa49439eb9a1ac0fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DEC 12084 bytes