Malicious PDF — malware analysis report

Static analysis result for SHA-256 6473eaa6858a8f9f…

MALICIOUS

PDF

52.3 KB Created: 2020-12-09 17:50:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 913791921a902ac4889737a38f6cbba1 SHA-1: f6680c6aa29eeb48357a9ad745047f43085b71fc SHA-256: 6473eaa6858a8f9f45d92cbaeeb92d17477cfda0364089afa815590aa9fc2445
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL pointing to 'traffine.ru', which is likely part of a phishing campaign. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8867

Heuristics 3

  • 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
  • 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://traffine.ru/aws?utm_term=armani+tracksuit+size+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491433/normal_5fab37688128e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446491/normal_5fc9ba7bc0586.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387565/normal_5fca5fed8ec87.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc36746104edf1d7790ed06/t/5fcd7c5a24c49707d335b5b7/1607302236371/luropuredowudexujixapo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69eae122-e880-405a-aa66-19e11c4157db/5e_xanathar27s_guide_feats.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/alembic_ltd_annual_report_2016-_17.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/business_communication_notes_for_bcom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52f47b11-b554-4bb8-91ed-e7a5f3470cbe/71480403567.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a7f9405d5340f32ee86e/t/5fc84a847ff5a343ebf04b79/1606961796738/tulogofonugegutiju.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc144361c8c7413143450ce/t/5fc452db9ee0f32b87ddb79f/1606701790776/martin_luther_king_mountaintop_speech.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f96c7d2b-c79e-4958-b344-94bf70128880/89406959084.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/water_electrolyte_balance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f6ad374-1e76-4e16-9abb-ca32486ea290/xigesudutuxupovedugajig.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdffa1bc819f1cf49eea39/1606287265576/zazapapabomaferezopebutav.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C3 5328 bytes
SHA-256: af5de88dd021febc4243f6a8cbfe095256d38a79196cbaf6e05961a7f6cdee16

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