Malicious PDF — malware analysis report

Static analysis result for SHA-256 3227bffc032d1a10…

MALICIOUS

PDF

76.5 KB Created: 2021-03-14 23:08:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a23071211dee1ac31afecfb2d482b590 SHA-1: 2226107ab8bdbd02ec06c63d7223cb5e73953d3b SHA-256: 3227bffc032d1a1030246890e5824393798779254a6485fe058f0161b46c2970
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the overall detection suggest a phishing attempt disguised as a product listing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://ponafet.ru/strik?utm_term=oster+turbo+a5+2-speed+clipper
    • http://tijudiwulewanuw.getenjoyment.net/aphg_study_guide_answers.pdf
    • https://cdn-cms.f-static.net/uploads/4482618/normal_6041835b89d85.pdf
    • https://cdn-cms.f-static.net/uploads/4367635/normal_6009dacbaee2f.pdf
    • https://static.s123-cdn-static.com/uploads/4477637/normal_5fe3ec450736b.pdf
    • https://static.s123-cdn-static.com/uploads/4499300/normal_5fc9be3ed74b5.pdf
    • https://cdn-cms.f-static.net/uploads/4447096/normal_602b4c8cb8d83.pdf
    • https://cdn-cms.f-static.net/uploads/4367950/normal_602afd43c6979.pdf
    • http://fejukoturig.medianewsonline.com/the_little_brown_compact_handbook_9th_edition_download.pdf
    • http://kazexajisodibu.medianewsonline.com/what_are_the_elements_of_a_song.pdf
    • http://wudazex.sportsontheweb.net/wofisapipifupikoguxa.pdf
    • https://cdn-cms.f-static.net/uploads/4449614/normal_603b5301d657d.pdf
    • http://jojidasusesot.sportsontheweb.net/what_is_continuous_and_discontinuous_edge_in_slab.pdf
    • http://jekefidaz.mygamesonline.org/figurative_language_dalam_puisi_the_road_not_taken.pdf
    • http://luwinilulurop.mywebcommunity.org/what_are_the_four_different_types_of_writing_in_the_old_testament.pdf
    • https://cdn-cms.f-static.net/uploads/4501654/normal_5fd93a4a687d8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lomiwexuva/giuseppe_terragni_transformations_decompositions_critiques.pdf
    • https://s3.amazonaws.com/dovulavavo/peaky_blinders_sad_song_free.pdf
    • http://safedoguno.onlinewebshop.net/20514444562.pdf
    • http://vajapojaperusu.myartsonline.com/what_is_burger_sauce_made_of_uk.pdf
    • https://s3.amazonaws.com/wemofodi/wimuxesidakulafevikuloki.pdf
    • https://s3.amazonaws.com/vipuxafol/10_basic_elements_of_poetry.pdf
    • https://s3.amazonaws.com/wupagivoz/how_to_change_oil_on_honda_mower.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cea9.bin
b4e64e8f094720e2f9d8353c5cc253d310693cf10d8a52fdd301475e0b3de345		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA9 5520 bytes
font_01_sfnt_off0000e172.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE172 1800 bytes
font_02_sfnt_off0000ea00.bin
229b7189c53cc4a886164dd4961cd1e4cac6047d86f01387f7719202a9ba7f33		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA00 10292 bytes
font_03_sfnt_off00010d74.bin
4b52fd5da643d9c08cc0a86f773b2f024e3274f3f861dfcac100db1ef433cf06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D74 16164 bytes

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