Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2dd7841ad1a9508…

MALICIOUS

PDF

84.7 KB Created: 2021-05-22 03:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: d32c09c8a0f297b367b7fd46093078f8 SHA-1: 9571dbe7ed44574206a7751f3fd93b09fe5b058f SHA-256: e2dd7841ad1a95082b268b1ce6c6ba47a9f13f718281ca2772e7f25ddbf9ce51
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'botokaw.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'inventory management' to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://botokaw.ru/strik?utm_term=how+to+use+excel+to+do+inventory+management PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489609/normal_5fd7a8e8663c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc65de8ddb05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375358/normal_6028e519dc3e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486534/normal_6004691e84739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459034/normal_604fbe8eba87b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468812/normal_5fe5299e1e6e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420602/normal_606a85151ce6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475997/normal_603a2270b5da9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xujitezu/daelim_industrial_co_ltd_annual_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8469b5c3-db1c-459d-9f7d-4ee6533b1339/62423518263.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/envision_math_2.0_4th_grade_textbook_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5d3c089-2a94-462c-b20d-0f96d6fa3097/71767487441.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/how_to_grow_lettuce_from_seeds_in_a_pot.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/guxolutukivarigewebog.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/losif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27327749-c768-467a-99a1-980fcd97f01d/74926288807.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/faded_piano_sheet_music_simple.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/10_facts_cuneiform.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/suromoleriv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53f683d-ded7-4eaf-830b-d7aac1d9e7d7/xavuded.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/53946444815.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce098c00-f823-452f-9e3e-760d88d54724/joes_crab_shack_menu_prices.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc68e5e8-1942-447f-885a-bef05537bf51/how_to_install_fnis_skyrim_vortex.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD94 5424 bytes
SHA-256: 6a24d302d3cf0bba548a6d91540f7b46f2211de318410758bc7f9d9a2908f5e0
font_01_sfnt_off00010ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FFE 11340 bytes
SHA-256: 3321ccba138e1c1ec255911c6af6b7029c7542e397e666f36843e2878bf34554
font_02_sfnt_off0001369f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1369F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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