Malicious PDF — malware analysis report

Static analysis result for SHA-256 f06fd15a89d94ee2…

MALICIOUS

PDF

72.7 KB Created: 2020-11-13 15:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: aac39dd69299aefdf7e219e327ee961a SHA-1: dad36c5e9c8bf692147a9f0a0f57c97945e7d700 SHA-256: f06fd15a89d94ee29514e064214897baae4e16323f69fbb0a5174ef46f5db9e8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though partially corrupted, suggests a lure related to a 'swimming pool project'. The presence of external URI and ML-based detection further supports its malicious nature. No scripts were extracted, but the embedded URL is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffking.ru/strik?utm_term=projeto+de+piscina+de+alvenaria+em+p PDF link annotation
    • https://mosovokiz.weebly.com/uploads/1/3/4/3/134333023/nekazuvunazem.pdfIn PDF document text
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/1843e913df.pdfIn PDF document text
    • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/zuronuvef_bazakulanigipe_bofufuvup_xininideweruve.pdfIn PDF document text
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/5640686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f87303d1fa3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f8a67bee4140.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jiwisi/mirenizotekuteliral.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22276870-e42f-4494-942f-0708b68a9c20/45383447930.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/couples_line_dance_list.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/3225632088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0066b893-37f8-4cf3-9342-01e1104bf22c/17250989099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7417afac-9fe2-42ad-a514-55d666177a7c/24513741038.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/tv_player_app_for_android.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE21 5144 bytes
SHA-256: d467b0826b7a19059214b62c528ad99cecd5a42cfb00fc89bf9dbaf8feb3b41f
font_01_sfnt_off0000df8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8D 12520 bytes
SHA-256: 27a406a679357568558112bb37d3f4d8cabf6d332ee3d0f7dc15eeb8977e5caa
font_02_sfnt_off000105ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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