Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1a60830a84b612…

MALICIOUS

PDF

163.0 KB Created: 2020-11-18 05:27:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 70c825a02780633d119c047b2b626390 SHA-1: d665c4ec4c2f65de63fd56768cb805e83d0178b7 SHA-256: ce1a60830a84b612905f30222e28cf982dc3cfa1fc10528ad860eb619aee19e7
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffset.ru/123?utm_term=symbol+mc3090+manual PDF link annotation
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/sobexeviwatano_puvenigovo_susemiraj_vikaratokutesep.pdfIn PDF document text
    • https://wajifisawebe.weebly.com/uploads/1/3/4/4/134480175/zezew-sarogif-daroj.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/soxanudamun.pdfIn PDF document text
    • https://jewojumafolu.weebly.com/uploads/1/3/4/6/134651010/dajabas.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf6a9c18-4f67-4373-8011-9cbc7623c20a/dujirafan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f98c6d2-ea28-483d-b21e-87c4692b9276/42609105257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16d66d43-f13a-47bc-a5b3-2752bcd8f1e8/ennai_thottu_alli_konda_song_downloa.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/math_worksheets_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/catfish_and_mandala_chapter_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/receta_para_hacer_bunuelos_colombianos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/579d4bf2-1e2d-4555-8574-31f9f4710854/52574546218.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/buildbox_free_game_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a692441-ee44-4a2c-a8df-ed52d2c3096a/dirt_track_games_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfa155a0-f25f-4819-a1d2-3d88d97943ea/99806692137.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000228af.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x228AF 16812 bytes
SHA-256: ecbec4bcde54829fbdf5f5cfdc3cf53ff7d38ee4826bc49dceabbc40d86f5979
font_00_sfnt_off00021620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21620 5476 bytes
SHA-256: 2749cfcd647b0e26bda5976722bee94e8a252827280604a7de60af66e87fe908
font_02_sfnt_off000255fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x255FE 12724 bytes
SHA-256: db916100c88a544576fb8dc6e9c9f626795f58f1afb47c2b36b8a7ff08ee337e