Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa773b00321b3aec…

MALICIOUS

PDF

60.7 KB Created: 2020-11-23 13:51:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0857db3a5ac7d16bbd24a6e7209ea382 SHA-1: 129cff90c45150dca7e597724c55739f1334ca7c SHA-256: aa773b00321b3aec4009513168e75c851aa8acc1c25d491815d575f94ce2bb6a
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 0.9994

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://trafffe.ru/123?utm_term=fisher+price+dune+racer PDF link annotation
    • https://kutolimog.weebly.com/uploads/1/3/4/4/134435461/4866686.pdfIn PDF document text
    • https://jabanomazekapuf.weebly.com/uploads/1/3/4/7/134743752/sorabonu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wilugugo/notuxuferojofodapozaf.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/boy_scouts_medical_form_a_b_c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12078eda-c63f-46bc-93db-014a0b20545b/tipaduwoxaduwava.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/platform_picture_gana_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/atlas_sewing_machine_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/canadian_parties_platforms_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/6772667363.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff25222-53e5-4418-b29c-af867649adb9/74028766946.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/regipobomadusiko.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a8c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8C4 5084 bytes
SHA-256: aade886f5e1ad1018cba04eb962ea96d6a439232ad6005b2017c7b1027104dd7
font_01_sfnt_off0000ba03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA03 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off0000c566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC566 9572 bytes
SHA-256: c6ab4fe2bb60cdd100ecc0ca231dfbb0e48caf8e2fc416fe9e0c8b76af1c88bd