Malicious PDF — malware analysis report

Static analysis result for SHA-256 54aace9058098843…

MALICIOUS

PDF

83.9 KB Created: 2021-03-24 13:08:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd4bbc9e72a203d0a67b4eea1e98640c SHA-1: 25ad16b63e382e3867a656a5cdca8614169fbd41 SHA-256: 54aace905809884361aeb01bbd7a83253eb8e128b24f2d415b2b6747fd16a213
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that appears to be a lure for downloading a service manual, which is a common social engineering tactic. No scripts were extracted, but the presence of external URIs suggests a potential download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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://maypoin.ru/wix?keyword=2000+hyundai+accent+service+manual+pdf
    • https://lokamafurixese.weebly.com/uploads/1/3/4/5/134509290/jereduked-gilefivo-roludowa.pdf
    • https://gobewuguwug.weebly.com/uploads/1/3/6/0/136056794/zemabelevam.pdf
    • https://fosobezi.weebly.com/uploads/1/3/4/8/134898374/1797245.pdf
    • https://cdn-cms.f-static.net/uploads/4421042/normal_6025ed4bcc48c.pdf
    • https://cdn-cms.f-static.net/uploads/4448740/normal_60136c84210af.pdf
    • https://cdn-cms.f-static.net/uploads/4472495/normal_60494f2190bec.pdf
    • http://boevoenlp.com/bejunomasovimesipose5qjy.pdf
    • http://hallop.xyz/the_negro_speaks_of_rivers_summary_in_kannadafiq5s.pdf
    • https://cdn-cms.f-static.net/uploads/4426269/normal_6030294f8bf20.pdf
    • https://veriketosamu.weebly.com/uploads/1/3/4/6/134675732/3ba8ad6c8a.pdf
    • https://cdn-cms.f-static.net/uploads/4419236/normal_60547c5839991.pdf
    • http://zebekuji.22web.org/25583185337.pdf
    • http://bellissimo.online/why_is_my_kidde_smoke_alarm_going_off_for_no_reasonq0rya.pdf
    • https://fogisavelubid.weebly.com/uploads/1/3/5/2/135299906/4985bab9041a07c.pdf
    • http://supportcopyright.net/xoxelowafetc64a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sapirabiv.rf.gd/their_eyes_were_watching_god_quote_analysis_packet_answers.pdf
    • https://s3.amazonaws.com/dobikasukavu/67031266286.pdf
    • https://uploads.strikinglycdn.com/files/29700946-846b-4a9e-93e9-06dc835302c5/did_roman_soldiers_wear_red.pdf
    • https://s3.amazonaws.com/pozokimepe/37518197091.pdf
    • https://uploads.strikinglycdn.com/files/151aaef3-9ee8-46f2-ab15-9253bc4123c2/what_charger_does_beats_solo_3_use.pdf
    • http://xonelamurojili.rf.gd/65809138678.pdf
    • https://uploads.strikinglycdn.com/files/b182aa4f-d668-4897-b0d0-c61ada17828c/xirekigisotore.pdf
    • http://reledolikivep.epizy.com/susixovapuzajunupunuki.pdf
    • https://uploads.strikinglycdn.com/files/59a06696-a1be-4fc2-90c8-093afc3e5a4f/data_warehouse_concepts_design_and_data_integration_week_2.pdf
    • https://s3.amazonaws.com/gorajikunobixi/jupilaruvovigi.pdf
    • https://uploads.strikinglycdn.com/files/c6301d29-0958-441b-ba5e-f852d5b5f228/36512169152.pdf
    • https://s3.amazonaws.com/kovezodepugov/akshara_singh_songs_free.pdf
    • https://s3.amazonaws.com/mudurixo/tupperware_rice_cooker_price_australia.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc4e.bin
a0a72ca428e1bea4fa464fb3e3ec4c5e5ffbbcef0dc91754547cad8de05cfb77		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4E 5508 bytes
font_01_sfnt_off00010ed2.bin
89cd52fccbad8ff75de83e302f056d9fa9cfffd7fafc8fa3c9e64af2cee59bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10ED2 10780 bytes
font_02_sfnt_off000133b8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133B8 4324 bytes

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