Malicious PDF — malware analysis report

Static analysis result for SHA-256 d013e99d4f144df6…

MALICIOUS

PDF

74.3 KB Created: 2021-06-10 19:30:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6db9a97e93e7b992d245a1e85239c69a SHA-1: 7d5c963469e2f3f6950a897c754c3e0ec74b118c SHA-256: d013e99d4f144df6cf07511393f3f069c322093d2588c075440c1fe19872207c
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, with one prominent URL leading to a page that appears to be a lure for movie streaming, likely intended to trick users into downloading malware or revealing sensitive information. The presence of embedded JavaScript, though not fully detailed, suggests potential for malicious scripting execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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
  • 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://chcial.ru/pbw?utm_term=addicted+full+movie+fmovies
    • https://kijagixizob.weebly.com/uploads/1/3/3/9/133997709/8079e4130d9.pdf
    • https://xalofaba.weebly.com/uploads/1/3/5/3/135339869/riwoluradufe_fazezebetifev_xutoxake.pdf
    • https://cdn-cms.f-static.net/uploads/4482872/normal_5fe8a0a903310.pdf
    • https://cdn-cms.f-static.net/uploads/4425507/normal_602ec039d2ce5.pdf
    • https://burakizu.weebly.com/uploads/1/3/1/0/131070688/xipuvururi.pdf
    • https://static.s123-cdn-static.com/uploads/4387411/normal_5ffba5103b0a1.pdf
    • https://vuzigalami.weebly.com/uploads/1/3/5/9/135960382/jabija.pdf
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/bilomumigatitam_kopitu_ponezefu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8c7bed2a-73ff-4100-a7b8-2269b156fc81/hadoop_word_count_program_explanation.pdf
    • https://uploads.strikinglycdn.com/files/b779e66f-8e37-4540-a5f6-db3f686dd727/leadership_style_questionnaire.pdf
    • https://uploads.strikinglycdn.com/files/39962b9d-bf5a-4dea-8bcb-2d817a89556e/step-by-step_novel_planning_workbook.pdf
    • https://uploads.strikinglycdn.com/files/d7b1458b-96e2-4e63-adee-0e68be991ff1/diary_of_a_wimpy_kid_movie_the_long_haul_watch_online.pdf
    • http://pudamalulera.pbworks.com/f/nuxamo.pdf
    • http://metukamef.pbworks.com/f/mupogi.pdf
    • https://uploads.strikinglycdn.com/files/09a4eded-022f-4d62-b44a-a4a371115faa/hardware_and_networking_interview_questions_with_answers_free_download.pdf
    • https://uploads.strikinglycdn.com/files/c05489e5-b4e1-4321-9739-fe8eaf913881/vibuvivesojo.pdf
    • https://uploads.strikinglycdn.com/files/98658155-74f8-4552-bf94-064148710347/preposition_activity_for_grade_7.pdf
    • https://uploads.strikinglycdn.com/files/cd750aaa-855f-4c2e-a9ed-aa3fa47cab60/annexure_d_for_minor_passport_notary.pdf
    • https://uploads.strikinglycdn.com/files/5df1ecb9-4a1d-4244-b4e9-323cedb04eaa/78705261125.pdf
    • http://wabiwepakeg.pbworks.com/f/is_dish_network_internet_good_for_gaming.pdf
    • https://uploads.strikinglycdn.com/files/1d315ced-12c9-4a63-a3c1-f069e048eda6/19342333864.pdf
    • https://uploads.strikinglycdn.com/files/ffbbf4d7-bafc-45dd-9b17-a7d1f030a959/decision_tree_induction_algorithm_steps.pdf
    • https://uploads.strikinglycdn.com/files/ad804314-334f-486a-866e-1d0d758e9e61/87960540079.pdf
    • http://jejogitu.pbworks.com/f/rumotigefit.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_off0000e71b.bin
c1d17b25eb2351cad812875d4012d1e639ff35be36ad455d9592a18f76a49d26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE71B 4908 bytes
font_01_sfnt_off0000f7d0.bin
286a57384b5e768f0a2f12ba27e8b5f2d086efa1bd15575021df1a6f40a534ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D0 10528 bytes

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