Malicious PDF — malware analysis report

Static analysis result for SHA-256 212e823375a4f17c…

MALICIOUS

PDF

104.5 KB Created: 2021-03-14 22:14:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1143de4ed46ab854663794614a33262d SHA-1: e0fa8040dad81ef1a8dd2e86e3883209a164c8ae SHA-256: 212e823375a4f17c02ee838c855536bedf9d725f699a7b3e96ebd7a33f56dfb8
156 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique often used for SEO poisoning or phishing. The primary malicious URL, https://mezovuduw.ru/award?keyword=boy+scout+of+the+philippines+manual+pdf, is likely intended to redirect users to a phishing page or a download for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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
  • 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://mezovuduw.ru/award?keyword=boy+scout+of+the+philippines+manual+pdf
    • https://xatevixi.weebly.com/uploads/1/3/4/6/134651360/barapexir-sirexak-bijunaja-mezedazetepavu.pdf
    • https://cdn-cms.f-static.net/uploads/4368489/normal_6044747b24069.pdf
    • https://static.s123-cdn-static.com/uploads/4427526/normal_5ff2354aa9d60.pdf
    • https://suzagadagaxu.weebly.com/uploads/1/3/0/7/130775939/mefaxura_wodapijodewig_fetorugetatasu.pdf
    • https://cdn-cms.f-static.net/uploads/4425916/normal_602921cb2d884.pdf
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/nenovivaponupix_nejeredogowa_dagomigezufil.pdf
    • https://static.s123-cdn-static.com/uploads/4483856/normal_600217484f879.pdf
    • http://derilezin.sportsontheweb.net/56964066370.pdf
    • https://wukisusu.weebly.com/uploads/1/3/2/6/132696029/118459.pdf
    • https://nibivesulekot.weebly.com/uploads/1/3/4/0/134017222/4363266.pdf
    • https://static.s123-cdn-static.com/uploads/4379987/normal_5fe2de384785f.pdf
    • https://cdn-cms.f-static.net/uploads/4418199/normal_601721924de71.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_fa2d09e1bf994d6d99d8918b97014f00.pdf?index=true
    • https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_a4f2ea63adb54a5182b6e12175250ae8.pdf?index=true
    • https://s3.amazonaws.com/fuzafuzeruwit/26588032230.pdf
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_50ea3588aacb4ce8aa179fb605c1ef63.pdf?index=true
    • https://s3.amazonaws.com/norozovijalu/dodijarixowaba.pdf
    • https://1c8fadd7-09eb-4d2b-9d42-8e747ba5ce52.filesusr.com/ugd/60625b_6fbd70321ae74e5cae59d12f2e65e654.pdf?index=true
    • https://s3.amazonaws.com/sowirutelevolur/brownie_guides_promise.pdf
    • https://s3.amazonaws.com/sesafefanulokam/anaerobic_digestion_of_biomass.pdf
    • https://b24182fa-1fee-416c-9f57-41d8a36573e1.filesusr.com/ugd/1cc367_baaa61a8ff5844d3a6fc3d3bdf6eabe0.pdf?index=true
    • http://dowuvoduwitovos.atwebpages.com/how_to_install_tp-link_tl-wn725n_without_cd.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_off00015ada.bin
aff2cbbec66ee5deadeab776938e9fb8ac55e883bbbdcc6b8dcab3abd7099daa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15ADA 5452 bytes
font_01_sfnt_off00016d52.bin
0b60e252de16c19d09255567a9a6ad7dd601ee0460b01078c761a44853de4b98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D52 12020 bytes

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