Malicious PDF — malware analysis report

Static analysis result for SHA-256 10597a7ee7d5fc13…

MALICIOUS

PDF

86.6 KB Created: 2021-03-29 19:05:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: de15c9a1aba97de47b3ac35b80c6e9a9 SHA-1: 5fab4da90aa7b42d5dc90c58353c98563aaa49ab SHA-256: 10597a7ee7d5fc13acac1cda7682c8cbb59fde7ee9b66d1e133837ac61f317b1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains multiple embedded URLs pointing to external domains, with one notable URI related to '2005 jeep grand cherokee ignition problems' which is likely a lure. The PDF structure and embedded content suggest an attempt to redirect users to potentially harmful websites.

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://nipisod.ru/aws?utm_term=2005+jeep+grand+cherokee+ignition+problems PDF link annotation
    • http://pajuwepubawip.sportsontheweb.net/52858904562.pdfIn PDF document text
    • https://dojosijodutater.weebly.com/uploads/1/3/6/0/136050104/a7c49.pdfIn PDF document text
    • http://zesegalos.scienceontheweb.net/vetoji.pdfIn PDF document text
    • http://nafepuzemobir.sportsontheweb.net/why_wont_my_hedge_trimmer_start.pdfIn PDF document text
    • http://bamirajewenexo.medianewsonline.com/veg_recipes_for_dinner.pdfIn PDF document text
    • http://tapopapebesawu.getenjoyment.net/15399507399.pdfIn PDF document text
    • https://benadegerabo.weebly.com/uploads/1/3/0/8/130874398/zebenagag-fibigov-jegimavoze-petawika.pdfIn PDF document text
    • http://viruxego.mygamesonline.org/gexujed.pdfIn PDF document text
    • http://mogimetekojubar.scienceontheweb.net/94843278333.pdfIn PDF document text
    • http://xonigej.mypressonline.com/what_is_the_climate_in_havana.pdfIn PDF document text
    • https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/vokevegivunujupazim.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
    • http://desejole.myartsonline.com/academic_writing_for_graduate_students_third_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/everybody_s_changing_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/adobe_premiere_pro_cs6_tutorial_espaol.pdfIn PDF document text
    • http://jaweratiz.atwebpages.com/atomic_structure_and_chemical_bonding_notes.pdfIn PDF document text
    • https://ebd73b9a-b255-48a5-b781-2bd84b483b4c.filesusr.com/ugd/956c05_d7f385dfccff45418779ca82fa2dbf62.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/forged_by_fire_test.pdfIn PDF document text
    • https://68f2566a-c586-4d15-a5d1-3a72044c38f3.filesusr.com/ugd/ecec20_9cc12855edf9413baf918bedecef42fc.pdf?index=trueIn PDF document text
    • https://6f4861c6-cdf0-4a5f-ba2d-f9c5e5bfbee6.filesusr.com/ugd/77941b_a384ae19a82d4ef384c8ed0bbac167a7.pdf?index=trueIn PDF document text
    • https://dba0ca6b-c979-46b3-87c9-041648dee063.filesusr.com/ugd/6f58fb_b264e2e923fe40df9476f5b707aeaa41.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/55785119256.pdfIn PDF document text
    • http://mewabetowa.myartsonline.com/39392175806.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/xiwexifogatapirusagi.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_off000107b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107B4 5856 bytes
SHA-256: 15f433a86dc9366410b04877e352ccc4b665bc74272b90c37cac60084875688e
font_01_sfnt_off00011b62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B62 10276 bytes
SHA-256: 2ed69c3d741f8f5fa2ed8d4b2eb35c7a344e15aa360ddb07141f50e471b59fbc
font_02_sfnt_off00013e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E3B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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