Malicious PDF — malware analysis report

Static analysis result for SHA-256 85014d4a4232414b…

MALICIOUS

PDF

72.2 KB Created: 2021-03-25 14:38:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f8d877071ef2b47bb26b1f19e533b9b SHA-1: d050be8c886352b669068af5b0f83bea893c4551 SHA-256: 85014d4a4232414b6de10b939dc9d01b0bcfb60049dfbd7929e585c971787aa4
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a lure related to a game download, which is a common tactic for phishing and malware distribution. It also contains a heuristic firing for a remote support tool lure, indicating the document likely instructs the user to install such software. The presence of external URIs and ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/wix?keyword=super+mario+star+scramble+4+unblocked
    • http://lorewipa.scienceontheweb.net/rulerazuguxofixiwuni.pdf
    • https://cdn.sqhk.co/tezofugowura/mJjcd6p/captain_america_civil_war_2_sides.pdf
    • https://cdn.sqhk.co/xokipuxat/bjfzRy3/osim_uinfinity_luxe_price.pdf
    • https://cdn.sqhk.co/lilodipu/bdMidQ3/free_tv_guide_listings_app.pdf
    • https://cdn.sqhk.co/norowitidot/XIzUhhB/62286514887.pdf
    • https://vesixogis.weebly.com/uploads/1/3/4/8/134863987/wakobepiv.pdf
    • http://vegifeda.mypressonline.com/xerodubigiwazavem.pdf
    • https://ruwuzeget.weebly.com/uploads/1/3/4/7/134755445/e13a159721.pdf
    • http://wamuvosuvebupa.iblogger.org/cake_icing_recipe_video.pdf
    • https://xawavefite.weebly.com/uploads/1/3/4/6/134667803/03079eba5c.pdf
    • http://xonitaj.mywebcommunity.org/47437420429.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/robumuduluwise/the_bluest_eyes_in_texas_lyrics_and_chords.pdf
    • http://murapimopavopa.myartsonline.com/jenegipanugulodo.pdf
    • http://tipisekoj.epizy.com/englisch_bungen_simple_present_present_progressive.pdf
    • https://uploads.strikinglycdn.com/files/a856b04b-ad24-4e72-957b-e1acccc101bb/mesilenodevunilivafubiso.pdf
    • https://uploads.strikinglycdn.com/files/b45108d3-8f3d-4c9a-a1bc-d2e4c5669611/93689554891.pdf
    • https://s3.amazonaws.com/fadedosi/45572832761.pdf
    • http://xiluwudikipo.epizy.com/41212092608.pdf
    • https://s3.amazonaws.com/xixonu/dr_khader_vali_books_in_telugu.pdf
    • https://uploads.strikinglycdn.com/files/1600ab03-9466-44a9-8c52-649353960329/wonder_comprehension_questions_part_1.pdf
    • http://zunuwovadete.epizy.com/blank_piano_sheet_music_free.pdf
    • https://uploads.strikinglycdn.com/files/ba8a6bd5-d763-4d2f-8b89-c90022ad7c68/is_a_negative_z_score_good.pdf
    • https://uploads.strikinglycdn.com/files/96a74cfa-a33e-4fff-abe4-166824573bd3/livro_de_evangelizao_espirita_infantil.pdf
    • http://ziboporo.epizy.com/47532054830.pdf
    • 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_off0000dad3.bin
1436f4b220d607fe93cb40b634a3f77b56c2afbdd9ea6e7eb1462aa4cae80d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD3 5612 bytes
font_01_sfnt_off0000edcd.bin
8d718695b9d23976abc6954d3c295df050638e2f3517e0ead1b0910a9b051999		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCD 11480 bytes

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