Malicious PDF — malware analysis report

Static analysis result for SHA-256 360934a223040695…

MALICIOUS

PDF

77.2 KB Created: 2021-03-25 00:37:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 29fc3a73df8c09d1d89d5e4549ec9ad7 SHA-1: 23f41af369d3196c03f615fbc7357eb32d06205e SHA-256: 360934a223040695d280a9c12bdbcbf4a9f9df0d8c64f62fc39eb3239b7cf4a9
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM', suggesting an attempt to direct users to potentially malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and numerous URLs point to a malicious document designed to exploit users through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/wix?keyword=star+girl+hack+apk PDF link annotation
    • https://dawekemukodo.weebly.com/uploads/1/3/4/4/134491409/8723367.pdfIn PDF document text
    • http://pukegowavoja.iblogger.org/bhiwandi_taluka_map.pdfIn PDF document text
    • http://zebolalifitu.22web.org/free_certified_nursing_assistant_resume_template.pdfIn PDF document text
    • https://nebomigefut.weebly.com/uploads/1/3/4/3/134359696/6ebabb8.pdfIn PDF document text
    • http://gevotumawifal.22web.org/transformers_6_bumblebee_full_movie.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/devuxuzejozam/86298103388.pdfIn PDF document text
    • http://xewabilema.epizy.com/kadofus.pdfIn PDF document text
    • https://926da24b-d3df-4aea-ac1b-ebdf7359a9e7.filesusr.com/ugd/fef925_dea2e0ffa7d5476faa583368ee39262f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/30182856733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eca1f0e0-e57e-42a2-bfc8-135ca81edced/93839878479.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/silk_bed_sheets_double_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/99789142705.pdfIn PDF document text
    • https://da550aaf-34ae-4f9b-ad82-7836b82beebe.filesusr.com/ugd/a203e6_6167950f90104233a9b68f85db056913.pdf?index=trueIn PDF document text
    • https://4b67404f-136a-46a0-9cf3-151f2d38faab.filesusr.com/ugd/241fd5_26c043a141b944698f5ec82cccfbb0a7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ae55f2f-68c9-48b5-862e-4b655a6fe0ca/45654577812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5dac04d-c441-4c19-ad82-d12bf47c50ba/sony_rx10_iv_user_manual.pdfIn PDF document text
    • http://notizawudix.epizy.com/baixar_alcoro_portugues.pdfIn PDF document text
    • https://98748e4b-3258-471a-903e-8ea98415cca0.filesusr.com/ugd/fd7405_21e69110c47b4c41a59f5775ea234b1f.pdf?index=trueIn PDF document text
    • https://ed0f7819-48b4-4c0d-9119-93de03d81b9c.filesusr.com/ugd/e481ce_13d65791c1104063a6eaa9ec1afaf089.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/12152245294.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68bb3bc0-6b73-4556-b2d4-a8a383c3c31c/macbeth_act_1_study_guide_answers.pdfIn PDF document text
    • http://xuxusemo.epizy.com/usda_food_defense_plan_template.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_off0000e59f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59F 4636 bytes
SHA-256: 38a476cf65f3e9e9c2f1a1f815ae252b6324120ed81faf0c3ef23bc947f8f0d7
font_01_sfnt_off0000f561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF561 10648 bytes
SHA-256: 5526a45670a85d4d2a1f36e3169ee570b5e3b0300961c3ad0390f7d23b4f44dd
font_02_sfnt_off0001196a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1196A 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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