Malicious PDF — malware analysis report

Static analysis result for SHA-256 060e38bf718d9da6…

MALICIOUS

PDF

77.3 KB Created: 2021-03-19 20:45:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 50c3f10930b4dee5e7847f588a0f127c SHA-1: acbd74520b48d7b529df3276532cabb7eb798f10 SHA-256: 060e38bf718d9da6357430dd729316956ac75d3e3110ba95025f10d9c952871a
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a lure related to router reset instructions. The ML classifier and ClamAV detection further support the malicious nature of this file.

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://midufefew.ru/strik?utm_term=how+to+reset+medialink+router PDF link annotation
    • http://jevafurevozu.mygamesonline.org/a_discovery_of_witches_season_2_episode_release_dates.pdfIn PDF document text
    • http://vimobewawulipiz.mypressonline.com/leripidukulufekugi.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/aihUNje/flying_monkeys_wizard_of_oz_images.pdfIn PDF document text
    • http://xuvavarapegu.mywebcommunity.org/zalozogaxifesemeka.pdfIn PDF document text
    • http://ramuwesitavoz.mywebcommunity.org/nevabawevodike.pdfIn PDF document text
    • https://cdn.sqhk.co/xafeperale/tgcigrX/lost_temple_of_dirthamen_glyphs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/carbon_steel_pipe_fittings_catalogue.pdfIn PDF document text
    • https://1e35b969-1f99-48dc-8aa8-d0fb9638bdc8.filesusr.com/ugd/970baa_55cb4fd4447143b7844f4c863c7ffdc0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/86a5dabd-b958-465f-a54f-acb6238d019b/6267965559.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1055dffb-7930-4285-ab39-d44845a25323/dream_interpretation_dog_bite_hip.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/69363246258.pdfIn PDF document text
    • https://38c8c62e-1823-4c1e-8220-bc61efcc8a1c.filesusr.com/ugd/c24b9b_5965a0ae7ae64d89ab7c485faded0bcb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lawakux/shark_rotator_nv501_replacement_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/98199807541.pdfIn PDF document text
    • https://6632aaff-1fe9-4f1d-acb3-7d444e457837.filesusr.com/ugd/ce4b7c_343bdf07d9694ce2ab12c3f9d210ddf4.pdf?index=trueIn PDF document text
    • https://7f1d4f38-7308-4051-b389-b8ed31312188.filesusr.com/ugd/e948c1_968aed587b70439bb90335eb6b6c1ab5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/sasafosane.pdfIn PDF document text
    • http://jemukiguwuw.myartsonline.com/1258275896.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCF 5088 bytes
SHA-256: e0ae02bcd44f07a945985ac06c0dd0a0904ffe201b6551fa95cc40a7db5f8001
font_01_sfnt_off0001010f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1010F 11400 bytes
SHA-256: fae8f6448cfa36bc9457a66ea80e252ce3648f098f6f3b8fd477d458ebe2c409

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