Malicious PDF — malware analysis report

Static analysis result for SHA-256 607e594c63ad49ab…

MALICIOUS

PDF

313.8 KB Created: 2021-01-28 11:00:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 9444502846dc54e4f726ef020e7be461 SHA-1: 81473657bd4fe4167cb8f944a54ba7af8f623e6b SHA-256: 607e594c63ad49ab2e6afbf5c1688eda5533e80b84af3febb02218656daf9727
116 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. The presence of multiple embedded URLs, including one pointing to 'jacksth.ru', suggests an attempt to redirect users to malicious sites. The heuristic 'SE_QR_LURE' indicates a potential QR code redirect, further supporting a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9087

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://jacksth.ru/aws?utm_term=timestamp+mysql+date+format PDF link annotation
    • https://cdn.sqhk.co/kobadaxo/QHkjgjd/epic_battle_simulator_2_download_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/tixelila/wib5hhi/bcit_westampton_covid_testing.pdfIn PDF document text
    • http://help-nanny.site/arena_swimming_goggles_cobra_ultra2tiwj.pdfIn PDF document text
    • http://interstart.online/rafesaparutugatumujoj8h8gy.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/XnYdjf9/69748427416.pdfIn PDF document text
    • http://vopibuxipem.22web.org/a6_flyer_template_photoshop.pdfIn PDF document text
    • https://cdn.sqhk.co/sunidoxil/igcieM5/souq._com_egypt_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/ihhMgh0/cinema_box_apk_free_download_for_android.pdfIn PDF document text
    • http://tameenegypt.com/bekomaxerazorak5yn00.pdfIn PDF document text
    • https://xekuruwagimutuz.weebly.com/uploads/1/3/2/6/132696141/4516109.pdfIn PDF document text
    • https://cdn.sqhk.co/silonifer/iieAugd/ben_10_rex_heroes_united_full_movie.pdfIn PDF document text
    • http://manthoughtswebsite.website/voici_le_pain_voici_le_vinb369r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nigukeja.epizy.com/australian_visa_form_no_929.pdfIn PDF document text
    • http://nizamazibenu.rf.gd/begusomewejano.pdfIn PDF document text
    • http://fawogalupa.epizy.com/85580831459.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43270 16236 bytes
SHA-256: 2a7ec0bdbc9e3ced0c136a8c0b43ccbb4780ec830bc91ee59f72235d3f6b9f7d
font_01_sfnt_off0004672b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4672B 5044 bytes
SHA-256: 6d5d552e7424bf1e1697385872bddd18382e4768f13780c2e7710c2676337822
font_02_sfnt_off00047853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47853 3168 bytes
SHA-256: ab17afddf022eeb32c8280636c9699946969df1e83316e2b722f8ea95833d569
font_03_sfnt_off0004851a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4851A 14136 bytes
SHA-256: 88ab70e36b2551bdb1ea53775e6786676d11e59d1d6ca4d542f435acf465e82a
font_04_sfnt_off0004b33f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B33F 16316 bytes
SHA-256: a6e9b3c2998d0745d1edd2c693192a487fd2d36014d4729cd58cbd7fd45622cf
font_05_sfnt_off0004c8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8DF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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