Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7aba839c6d741b…

MALICIOUS

PDF

77.5 KB Created: 2021-03-28 07:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b5767bf029e5ea108fc2272a674a76a SHA-1: df84e50b362d3d1f621666f7679b2dbd93764ac5 SHA-256: ba7aba839c6d741bf612325f0f351839774bd18bd7ce4f1003c132deabfe7e66
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to 'lozipotod.ru', which is suspicious and likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick the user into navigating to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://lozipotod.ru/123?utm_term=android+box+mxq+pro
    • http://agencymedia-ig.com/tortora_microbiology_13th_editionu85fa.pdf
    • http://seamanygau.best/menojotepawoviparirafowiv2ywb.pdf
    • http://sluzhba1.net/carbs_in_burger_king_crispy_chicken_sandwich_no_bunsu1rz.pdf
    • https://leduzurukidep.weebly.com/uploads/1/3/4/8/134858842/5768496.pdf
    • http://prizinsta365.site/universal_remote_channel_master_dvr5aeyp.pdf
    • https://cdn.sqhk.co/fipufose/hfxOFha/vorosuwemukekaxalo.pdf
    • https://bewulikafujisew.weebly.com/uploads/1/3/5/3/135326730/tiberezodis_paguv_voriroxar.pdf
    • http://pearhaidhr.fun/beatles_anthology_booklet0xo6x.pdf
    • https://cdn.sqhk.co/dabozijide/aFFPhbW/juvijogexasadilona.pdf
    • https://gaburizopa.weebly.com/uploads/1/3/1/4/131438784/74ce9c5.pdf
    • https://wofexajolevesi.weebly.com/uploads/1/3/5/3/135302186/7041759.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gewuwasi/telugu_adhurs_movie_video_songs_free.pdf
    • https://s3.amazonaws.com/xuxifuzituwu/fevesisilinu.pdf
    • https://s3.amazonaws.com/zozuxukoxo/worksheet_on_mean_absolute_deviation.pdf
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_479b5ebf2a504f3ab34c70cb2630e2fe.pdf?index=true
    • https://s3.amazonaws.com/purixifusipelid/sevajejubukekizori.pdf
    • https://0ea28b16-58c2-472d-b6be-3e97fe9b7bb6.filesusr.com/ugd/696b8a_e6dcaabaa9054706a76fa2e4114b49fa.pdf?index=true
    • https://71a0d42b-91d5-4e94-9338-ff69ca8a624b.filesusr.com/ugd/e5d5e5_8bc9099bf95746aa8afc392da067dcd3.pdf?index=true
    • https://s3.amazonaws.com/takateg/tangled_2010_english_subtitles.pdf
    • https://s3.amazonaws.com/jijari/46517049051.pdf
    • https://ce2645ba-e89a-43d5-afff-5c0150757291.filesusr.com/ugd/c63dba_917646fdb90140f88b56da58bd645388.pdf?index=true
    • https://s3.amazonaws.com/wexoteluwag/what_is_the_theme_of_the_book_wonderstruck.pdf
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_5ccb44bb2288467bbb7faf2c60b8e0c6.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_off0000f383.bin
ec00751ad68e6b594f2bcfb3ac5981f003dfaa450f5f688e37ed3fcc855d0db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF383 5008 bytes
font_01_sfnt_off00010471.bin
5a0c6fd3a90530d788c8c0f13d6543f641119625f6fcccd2fffa537fd4e6ab70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10471 10720 bytes

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