Malicious PDF — malware analysis report

Static analysis result for SHA-256 005d5f2ced7c5819…

MALICIOUS

PDF

75.7 KB Created: 2021-03-08 11:24:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5e233ecbe83ef349ed88ed0dc82af75e SHA-1: 0cca9b6396f09dfa08fa5ce3ef6bf90b2243abf2 SHA-256: 005d5f2ced7c5819b6cf77265644b26b505a449c26310b3711be87be2d3c11ed
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF contains a large number of external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM'. The primary URL, https://maypoin.ru/aws?utm_term=netgear+wnr1000v3+wireless+bridge, suggests a potential phishing or scam lure related to network devices. While no scripts were explicitly extracted, the presence of numerous external links points towards an attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://maypoin.ru/aws?utm_term=netgear+wnr1000v3+wireless+bridge PDF link annotation
    • http://koxelovanalimu.getenjoyment.net/35784821084.pdfIn PDF document text
    • http://antonioit.fun/sims_3_pets_cd_key_code7ve6s.pdfIn PDF document text
    • http://doordash.fun/tabela_anexos_simples_nacional_2019woy08.pdfIn PDF document text
    • http://natikolom.site/lanoximoforimodonuvqow1q.pdfIn PDF document text
    • https://womegirig.weebly.com/uploads/1/3/4/5/134506381/4050864.pdfIn PDF document text
    • https://dijuwinepogiw.weebly.com/uploads/1/3/0/7/130738679/4ef0e8eb4.pdfIn PDF document text
    • http://lolafoduluj.22web.org/i_have_already_informed_meaning_in_tamil.pdfIn PDF document text
    • https://vebajixumese.weebly.com/uploads/1/3/4/4/134483039/pijagafof_pulokiv_bujeg_jabes.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/vuxalirudidel/majojixaturalebul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56b34e9f-b572-4959-9d7c-ca66fa690519/chevy_malibu_led_tail_lights.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/485182348.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/rivemip.pdfIn PDF document text
    • http://gakilasefit.myartsonline.com/popurewogidutuvavufeteni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5afc710-679b-4f01-9794-89e73285757a/why_the_rich_get_richer_robert_kiyosaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/565c32f7-9a11-478a-abf9-9b8190ba2281/16827017966.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/285c547b-dd1e-49d5-8482-2ecd725e2bab/dowozufifud.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/gukimigo.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/creature_3d_full_movie_moviescounter.pdfIn PDF document text
    • http://bofozimugonofa.rf.gd/social_media_icon_set_psd_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d263290-6c73-47f5-beb3-0d721bfed3b4/1214706972.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_off0000e918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE918 5612 bytes
SHA-256: 57452d48ef8a69a64ea93b1b0711f6af602c9092bb9ee0e2536abaf6bb03df49
font_01_sfnt_off0000fc59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC59 10916 bytes
SHA-256: 43aa1eaf7d000b247545d4e0a06da1890f4e54cd4b9ccd64bf0583072fe76878

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