Malicious PDF — malware analysis report

Static analysis result for SHA-256 08ab247704acd71d…

MALICIOUS

PDF

85.1 KB Created: 2021-02-06 01:26:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 40d67bcdd9ff8b8295334fbcc78f6231 SHA-1: 478669570a834c4be9ad467d031b5080661c9ba3 SHA-256: 08ab247704acd71d2a36342318ade7155cd32fd9bd6a02991ef14568460ceaad
136 Risk Score

Malware Insights

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

The PDF contains a heuristically identified random URL link pointing to a suspicious domain, likely intended to deliver a malicious payload. The embedded URL also suggests a phishing or scam attempt, possibly related to product searches. ClamAV detection and ML classification strongly indicate maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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/123?utm_term=medela+pump+in+style+advanced+starter+set+amazon PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494883/normal_5ff28ef521a72.pdfIn PDF document text
    • https://nipixajivoru.weebly.com/uploads/1/3/1/4/131436983/raxewosemop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494663/normal_5fdbdfbb632e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393628/normal_5fe6cd8314180.pdfIn PDF document text
    • http://privateguardingserviceagainstdanger.site/cars_2006_chick_hicks1ipj9.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/gd1eX9x/89321090905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459176/normal_6014891e71f48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413226/normal_5fc67e85b0123.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/gdjjigg/gonifatoperuleko.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/iE8jQjs/hot_girl_skins_for_pixel_gun_3d.pdfIn PDF document text
    • https://cdn.sqhk.co/legikowe/dIOxPXD/train_sim_world_2_review.pdfIn PDF document text
    • https://cdn.sqhk.co/pasededi/cjdgcgh/59572638219.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408593/normal_6002ad9b421f8.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/fatikonavori/73868520428.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/77453977815.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/been_calling_music_video.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_off00010e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E17 5436 bytes
SHA-256: b0847a238b93204bfab747d363bf08dc5c3a7c63f98f28f654577a0c050975fb
font_01_sfnt_off000120a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120A1 11204 bytes
SHA-256: f784ed8f7d0ef079ea29a37eedec83c39ba28bcb069697b7c3d7cb2da54a98ff

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