Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f2f8fd64ea9dde6…

MALICIOUS

PDF

75.1 KB Created: 2020-12-06 15:43:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: e26f5f3204a5a2b412400209decbc8af SHA-1: d315b8ba019aaf658bf5f656383233550cad4d9d SHA-256: 3f2f8fd64ea9dde6d51fced566c3ae1e46cd0ad3c983928432d6ab00b5b3cea0
174 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=accelerator+plus+premium+apk+2019'. This URL is presented as a download for 'Accelerator plus premium apk 2019', indicating a phishing or malware distribution lure. The ML classifier also strongly flagged this PDF as malicious.

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://traffmen.ru/aws?utm_term=accelerator+plus+premium+apk+2019 In PDF document text
    • https://lesofexofolusik.weebly.com/uploads/1/3/4/5/134506957/fumigudegibowax_gikipadubajasep.pdfIn PDF document text
    • https://vekekugez.weebly.com/uploads/1/3/4/8/134883785/1ac80.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/dulevukikesejit.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/kovozenamofox/21227337394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f44d6a9d-9cb4-4430-bb93-b483d57e442f/kizunejaxenexewoximuzib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c67840f1034a5ca82603/t/5fc299b7e18c5c478e50800a/1606588855220/roruxepabap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be43631-155b-4217-90b8-145939ec83a4/simenolevumuko.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29fdf0b6b03258f4092dc/t/5fc56a13f81c9a2a0c59d7e9/1606773267678/57446245848.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64900084698658e82fac3/t/5fcb739d9708706f399b9086/1607168930881/62519288512.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/adcom_gfa_555_ii_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf0fe18e72e5fdb9bc6ae/1606283518804/what_is_this_thing_called_science.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9844241-55c5-4ee6-b3d0-87c2536dff07/31139695610.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dd745bcb0228a2824d01/t/5fc121905147b148045c2679/1606492561261/bloons_td_battles_eco_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4086b97992eb55bb7f9/t/5fc3f11f08845d0924033ccf/1606676767648/mm_trucking_co._inc.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_off0000d700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD700 5616 bytes
SHA-256: 4a512a8f89ec0e0a51c7b76e2449ed863aa684fedaac1a794308e8146dca825a
font_01_sfnt_off0000ea06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA06 17024 bytes
SHA-256: 9351db173073bffe24096bbaedf28ea37a4fb3efa475df276947dca3805b7638