Malicious PDF — malware analysis report

Static analysis result for SHA-256 face5bbbb1d9e7a3…

MALICIOUS

PDF

74.1 KB Created: 2021-01-14 15:21:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dea5d0b2620fef21861d8856bee1e87a SHA-1: 251ddfa380abc6123767eab50d97876a8c8bfa8d SHA-256: face5bbbb1d9e7a337db1d9377c88a7635255fee8ffb9a0bc24c79527562d0df
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, contains text related to 'Land rover lr3 performance parts', suggesting a phishing or social engineering lure to drive traffic to the malicious URL.

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://trafficel.ru/aws?utm_term=land+rover+lr3+performance+parts PDF link annotation
    • https://site-1168049.mozfiles.com/files/1168049/44688391980.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472198/normal_5fad711462ed0.pdfIn PDF document text
    • https://site-1177498.mozfiles.com/files/1177498/gowujufe.pdfIn PDF document text
    • https://site-1166601.mozfiles.com/files/1166601/demepoganoge.pdfIn PDF document text
    • https://site-1241708.mozfiles.com/files/1241708/35907243612.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366973/normal_5f87cec831979.pdfIn PDF document text
    • https://site-1174202.mozfiles.com/files/1174202/31153431927.pdfIn PDF document text
    • https://site-1083772.mozfiles.com/files/1083772/maze_runner_3_cast.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/xalasawu/basic_english_sentence_structure.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/dangerous_goods_shipping_document_template_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/cardboard_vr_app.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/washtenaw_county_register_of_deeds_phone_number.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/bengali_mp4_song_a_to_z.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/toolstation_clamp_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/jiripulixafevowikugi.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/deficiencia_de_vitamina_b2.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_off0000e25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25A 5464 bytes
SHA-256: 1c5d25d5e4a30ce137cda2549b20da09b8be07eb5d0f94cbbe5420c53f78ebbb
font_01_sfnt_off0000f4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4ED 11200 bytes
SHA-256: 3c3f49e5eb32b319498fccead95561179e0e0171aeaf127b3e45d5d556bf0b02

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