Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de97cbcfe2a1667…

MALICIOUS

PDF

69.9 KB Created: 2020-12-24 03:13:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 46e5c36f5cbdf10f9a951353ffb4eb72 SHA-1: b609fd220b19f6227f28b5464c7d5a3efe26ff63 SHA-256: 1de97cbcfe2a16674a3ca6fd6d38888798dd66805770429d2adb540d9fe92c80
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a site offering a game download, which is a common lure for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or delivering a trojan. No scripts were extracted, but the presence of external URIs and the overall detection profile suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=gamehouse+text+twist+2+free+download PDF link annotation
    • https://cdn.sqhk.co/letowajaf/PuaigFP/taxetodaxupuvaxeduzut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5fd79ba26f5c4.pdfIn PDF document text
    • https://cdn.sqhk.co/niturunajik/ijqmij0/53840573766.pdfIn PDF document text
    • https://cdn.sqhk.co/ritafase/geghggr/18554647371.pdfIn PDF document text
    • https://daxuvevirub.weebly.com/uploads/1/3/4/0/134013438/botedinowibi_kubeso_guberi.pdfIn PDF document text
    • https://dopikilazobowu.weebly.com/uploads/1/3/4/4/134488506/wiwezuluwu-nepudimumeg-rulugukepufatid.pdfIn PDF document text
    • https://wovusowi.weebly.com/uploads/1/3/4/8/134886666/3613045.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466657/normal_5fc22392f278b.pdfIn PDF document text
    • https://tarebizadutobi.weebly.com/uploads/1/3/4/3/134310067/xodoludoduxowi_wakabuvorotuxut_sadad_lonuru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413468/normal_5fa5fb23731fe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ce92b0d-13ca-40bd-b3e9-28c3a397917d/fate_card_collection_skyrim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1768488c-671e-453b-b355-09f4bd4cf253/s_pen_replacement_note_20.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_off0000d5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A4 5468 bytes
SHA-256: ef2fe4ccacafc25ceb12f2555675f2cb1ccf9ad5d1682503efb1fc156897c5d9
font_01_sfnt_off0000e82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82B 10092 bytes
SHA-256: d9da8ea15bbe251ee2b32c89ca7efcff8b8e26afe668778229822f00c6ea4b2c