Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5c6c4ca3d0c101c…

MALICIOUS

PDF

82.7 KB Created: 2021-03-07 07:26:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 55cd57dd21d2850122b2ef6b89c7fc87 SHA-1: 54905c0b81d929f5d1d0003ec1c6330fc9c6ad48 SHA-256: c5c6c4ca3d0c101c1142fd6af53bd6d7d02c1c033d1fa78f0deb2ea3567d902f
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or conduct further phishing activities. The document body, though heavily obfuscated, suggests a lure related to a 'house hunting comparison worksheet'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/wix?keyword=house+hunting+comparison+worksheet PDF link annotation
    • https://cdn.sqhk.co/riketumes/9oojhir/38244148515.pdfIn PDF document text
    • https://kukutapiroboj.weebly.com/uploads/1/3/4/7/134712573/keteladukejugef.pdfIn PDF document text
    • http://meetdouche.xyz/sexuality_issues_in_the_house_on_mango_streetjp9p1.pdfIn PDF document text
    • https://kunubukom.weebly.com/uploads/1/3/4/5/134599245/magidogor-belorabolepe.pdfIn PDF document text
    • https://teputire.weebly.com/uploads/1/3/0/8/130813428/pijalefidomuw-vesezomatido.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/GibJXia/chores_in_this_house_wap_parody.pdfIn PDF document text
    • https://cdn.sqhk.co/disovaje/dhWjaid/cartoon_cat_x_cartoon_dog_gacha_life.pdfIn PDF document text
    • https://manesufepal.weebly.com/uploads/1/3/1/3/131381078/f93ccd1d0882dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383797/normal_60207d4eb64c4.pdfIn PDF document text
    • https://nugazemagutum.weebly.com/uploads/1/3/4/3/134346004/5712509.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421615/normal_602b3929182b3.pdfIn PDF document text
    • http://fastpysystem.online/puxoxesigavelegalitaju5lom4.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/fowikorejodi/why_is_my_beko_fridge_leaking_water_inside.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/329ab21f-7576-4539-b934-4d970d49be10/7216340533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af8b9b34-2b04-46bd-b640-28fda682b624/fire_and_ice_animated_movie_download.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/yaseen_sharif_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/hd_movies_hollywood_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b955740-de58-418b-9c5a-21c6af42d34e/xomefunudakef.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/mogemizoxilanisi.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_off00010672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10672 5432 bytes
SHA-256: 5b273b7d3b51b8e8f5ca0bd36bd8bb38eadc3e5ab88d56a023c005ea327b7f5a
font_01_sfnt_off000118d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D6 10896 bytes
SHA-256: 71784219d64edd8da929da03bca9bcfca67ae723058037cfd0189762064bac30

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