Malicious PDF — malware analysis report

Static analysis result for SHA-256 d182df517b153317…

MALICIOUS

PDF

77.3 KB Created: 2021-03-04 21:08:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f122d0574786d25829a066bd5677038c SHA-1: 51a584fcd9c8fa83dce3018ae2ef7f7505caaf85 SHA-256: d182df517b153317383b8c35edc5587b15cedb5f06fb785b21ffef195fee000e
196 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are disguised as benign documents but likely lead to malicious content. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic strongly indicates a phishing attempt, likely to trick users into downloading further malware or revealing sensitive information. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://seumenha.ru/123?utm_term=seth+godin+quotes+on+change
    • http://nemosixumeki.mypressonline.com/xilogerigiratusagin.pdf
    • http://medazuxa.mywebcommunity.org/43504527722.pdf
    • http://vurujupafowutox.mypressonline.com/bolexapizinavewa.pdf
    • https://tulaliferejuza.weebly.com/uploads/1/3/0/7/130775137/sosifulare_sujofaloledopa.pdf
    • http://lumobumekola.getenjoyment.net/2013_subaru_impreza_wrx_engine_name.pdf
    • https://gokejaxax.weebly.com/uploads/1/3/6/0/136056436/xiwopo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://safedoguno.onlinewebshop.net/things_not_seen_chapter_9_summary.pdf
    • https://s3.amazonaws.com/vibuvomomuv/jepivuwuvuganiwo.pdf
    • https://c83cbd6e-a134-4b49-ba12-49f24c654ad9.filesusr.com/ugd/904a8b_4810209d3f6e4341a45f1911b8384db6.pdf?index=true
    • https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_4d16822e8a534ef095a6ef6cab1fb4db.pdf?index=true
    • https://s3.amazonaws.com/dobikasukavu/tofidewinovopufagepu.pdf
    • https://edefa294-c65c-46c5-840b-8a4669b9fdfe.filesusr.com/ugd/e4a001_a2dffce95c8942308fd56b0488aa8d01.pdf?index=true
    • https://s3.amazonaws.com/fosagoba/49921846193.pdf
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_5a74333cd7e840a683ccd8b0b9f897e9.pdf?index=true
    • http://dirazonun.myartsonline.com/36699450459.pdf
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_6d4cf56513fe47af9c62d87bc0176183.pdf?index=true
    • https://s3.amazonaws.com/pafexegud/96874687578.pdf
    • http://gurabagoderes.atwebpages.com/porter_cable_scroll_saw_blade_change.pdf
    • https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_214b7ddecdd048da90392bdf20ff4ef4.pdf?index=true
    • https://s3.amazonaws.com/pewibim/mt_everest_guide_companies.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f17a.bin
097ec23e51f892ca8c2fe35da80abf7c5c669d17f062943e666af0560568c385		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF17A 5300 bytes
font_01_sfnt_off0001037a.bin
e5c0b173fca59505b7f29e878d042bcd2ca9f9d29d5b83ac29af2d20451a0158		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1037A 10796 bytes

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