Malicious PDF — malware analysis report

Static analysis result for SHA-256 7865562eaa5e2018…

MALICIOUS

PDF

54.9 KB Created: 2020-11-05 20:12:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 33599535eca2e71893f4a6347bfc55d6 SHA-1: 285c114bcfe458734743d7dd652df9b8086ca08d SHA-256: 7865562eaa5e2018d8ec68ee0363cb90b6af16c7a6528206600ef2fff0b49690
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links to known malicious redirector infrastructure, specifically 'https://gettraff.ru/aws?keyword=lds+seminary+manual+2017'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'lds seminary manual 2017'. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/aws?keyword=lds+seminary+manual+2017 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382782/normal_5f9316361ee7e.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/3e352.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374704/normal_5f8bb1d014ee4.pdfIn PDF document text
    • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/jidikemuruj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367019/normal_5f8901c5386ad.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://uploads.strikinglycdn.com/files/d0125ade-4de5-4593-b536-6cc118ee832c/jaxijigapomomugalomade.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/ruvigowikinuregokiref.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/saruwetusex.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/genupepimeritubodidewiju.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/93316847699.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/earth_s_best_diapers_size_1.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/najuz.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/73967470516.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_off00008b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3D 5112 bytes
SHA-256: 3d8713453bfe0751bf4dd4818183bcc232294c8321b5cf32dc81103643a2ee27
font_01_sfnt_off00009c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C85 10516 bytes
SHA-256: 2bee8d18e1a3bbd71334f066a3efdf41fc488f039d6807d6b23117e3cc919196
font_02_sfnt_off0000c04d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC04D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.