Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c036ba6d078b575…

MALICIOUS

PDF

82.0 KB Created: 2021-03-25 01:29:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5279e0fc1b7d6fbd5cc735f785a2b190 SHA-1: b15bf0d7aa9815f8c4620b7404fba279bc4d591f SHA-256: 6c036ba6d078b575589f45e160c5bea43539e6aeee523d82c28d4a71beb56d3f
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV. It contains an embedded URL that masquerades as a search result for a literary topic, likely to trick users into visiting a malicious site. The PDF structure itself does not contain executable scripts, but the presence of an external URI points to a phishing or redirection attempt.

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://mezovuduw.ru/strik?utm_term=what+is+the+significance+of+act+1+scene+5+in+macbeth
    • https://cdn-cms.f-static.net/uploads/4404488/normal_5fd9441355778.pdf
    • https://static.s123-cdn-static.com/uploads/4403688/normal_5ff57619d9dd3.pdf
    • https://cdn-cms.f-static.net/uploads/4459170/normal_5fd09f71465fd.pdf
    • https://cdn-cms.f-static.net/uploads/4473062/normal_6053a1d117257.pdf
    • https://cdn-cms.f-static.net/uploads/4450034/normal_6033fab63cd6f.pdf
    • http://mujudesuxiropa.sportsontheweb.net/annotated_bibliography_example_mla_8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sadamenukovizep.epizy.com/tevatexilifofogegiz.pdf
    • https://s3.amazonaws.com/zerepuzuze/how_to_program_a_genie_garage_door_opener_with_dip_switches.pdf
    • https://78f121e6-5824-477f-9480-4bf23eba804c.filesusr.com/ugd/9564ad_7b8c11d7623044e7b82076c9354334ef.pdf?index=true
    • http://vawivulumekil.onlinewebshop.net/cooling_tower_chemical_dosing_calculations.pdf
    • https://6e7ef639-f89a-4701-86f9-710a836f1183.filesusr.com/ugd/12745a_b7d5b15923b84e15b4964170a05c9a6d.pdf?index=true
    • http://kuzemepusiloj.onlinewebshop.net/pengertian_bakteri_coliform.pdf
    • https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_aff58784a81b4cd0b2b4796b3a7b0a00.pdf?index=true
    • http://jopuvirul.epizy.com/43295087985.pdf
    • http://nevafofuvabovid.atwebpages.com/88072509620.pdf
    • https://s3.amazonaws.com/kodipopujufipig/fanakimelodija.pdf
    • https://s3.amazonaws.com/dowadotiju/three_wifi_call_on_android.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_off0000f58b.bin
d419e79578fad9ef274d635f289473e073eaa69d85926ade6ff073cf62bca2e5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF58B 5284 bytes
font_01_sfnt_off00010774.bin
2aa332d546e6dbd17f6d502da22e71899e36164180d271bce4e7d63ee2663603
pdf-font-stream PDF embedded font (sfnt) at offset 0x10774 10852 bytes
font_02_sfnt_off00012c61.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x12C61 4324 bytes