Malicious PDF — malware analysis report

Static analysis result for SHA-256 00dcc2c69e75f0da…

MALICIOUS

PDF

74.3 KB Created: 2021-04-30 19:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05c0e26fe3cd9a8337b3bea486cb0455 SHA-1: ce40a0fb5e56fd725c45e1f04351af62326c3d40 SHA-256: 00dcc2c69e75f0da24e1b65282796694c3397d103a7f7c3fc9c9c2e4076fdcbc
196 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 link farm, and is flagged as an advance-fee scam lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary purpose appears to be directing users to potentially malicious websites through these links, which is a common tactic for phishing and scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://xezojetit.ru/strik?utm_term=direction+test+tips+and+tricks
    • https://povaxabo.weebly.com/uploads/1/3/5/9/135976235/2489553.pdf
    • https://rusipamisu.weebly.com/uploads/1/3/4/0/134017355/merekof.pdf
    • https://zadavutuni.weebly.com/uploads/1/3/4/3/134343582/fujukitemo_wixeridoj_xebekika_xilep.pdf
    • https://zijepujalikok.weebly.com/uploads/1/3/1/0/131071164/5891293.pdf
    • https://kazawiluk.weebly.com/uploads/1/3/5/3/135384823/58bb857a23ae3.pdf
    • https://cdn.sqhk.co/tebefaravuz/cTOJgj4/injustice_gods_among_us_ultimate_edition_gameplay_espanol.pdf
    • https://cdn.sqhk.co/gimexigerub/giijjfr/fantasy_hero_creator.pdf
    • https://sofamilases.weebly.com/uploads/1/3/5/4/135401016/5715466.pdf
    • https://cdn.sqhk.co/gituridewo/Y9d95d1/fufumivikibezo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/acc6415e-8484-4b06-b8cd-31e4db5dc026/kedukikurikorivovujevuz.pdf
    • https://uploads.strikinglycdn.com/files/3d8ca256-6c61-4aa8-bfe2-09c99e03e095/camera_shots_and_angles_in_hindi.pdf
    • https://2b01876c-5741-4e94-bfb6-30973e4a6517.filesusr.com/ugd/45d688_c47268fd83b44a519c3aca488a29f932.pdf?index=true
    • https://uploads.strikinglycdn.com/files/4abb6c48-5f40-4916-b8c6-f6dfab34a305/tokinugapexoxuwe.pdf
    • https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_1eb07bdc5bbf4d619dff6b853a601fec.pdf?index=true
    • https://68e1e3d4-268d-49bc-a8aa-b119cb10fea7.filesusr.com/ugd/3ceeb9_306a58fbe4154c99ac77a6831672c891.pdf?index=true
    • https://1e16f6d7-285b-4488-bf07-d3e24ac90e20.filesusr.com/ugd/417718_99869d3fe89544af9a41e2e9f6c42ba5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b9f6172f-0970-4c28-835c-e4d793979bc9/mipevagewi.pdf
    • https://f733e552-90a1-4d1f-83ca-a6b36afcf31c.filesusr.com/ugd/38bf1f_b9ed549a6ec14fdbb5ffb67ffc3dc21a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/bc3412ad-84ed-4337-85a4-dcf449a15f8d/intercultural_communication_globalization_and_social_justice.pdf
    • https://uploads.strikinglycdn.com/files/4ef0c0d4-ed61-449e-af07-871aa89ac73b/juego_de_gentilicios_de_espaa.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1c2.bin
2c1a3f4164808a7deff94688f63719315833a6abe062d4e725eefbd81dce2ef4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C2 5096 bytes
font_01_sfnt_off0000f332.bin
6b146e65eb21e667b4f28b9156f4dd1eda3db46e60ce89dfe1660646695657de		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF332 11528 bytes

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