Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dce23509143fd0d…

MALICIOUS

PDF

68.6 KB Created: 2020-11-24 19:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 279f735345a44f100afe8584949173a6 SHA-1: 9837d71035a3802e0d06486b16929dbe041b57b4 SHA-256: 6dce23509143fd0d7ff8a9de8c9ae06a0a0044b2a4b91ae3a7c5f09ae1dfdf50
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by multiple heuristics and a machine learning classifier. It contains a large number of external links, indicating it is part of a link farm designed to redirect users to potentially malicious sites. The primary URL identified is 'https://traffine.ru/strik?utm_term=water+dragon+spirit+animal', which is likely used to distribute further payloads or conduct phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffine.ru/strik?utm_term=water+dragon+spirit+animal PDF link annotation
    • https://dufofisejufosu.weebly.com/uploads/1/3/4/8/134875198/af345ac5cdc708.pdfIn PDF document text
    • https://tunomofezu.weebly.com/uploads/1/3/2/3/132303147/zinizunusukusekaseza.pdfIn PDF document text
    • https://wefejakero.weebly.com/uploads/1/3/0/8/130814310/7075312.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/29ecf51e66f79.pdfIn PDF document text
    • https://kupikonawu.weebly.com/uploads/1/3/4/8/134882044/sesawodev_bijoxozuzibuvo_papovuz.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/2ade700cae6d4.pdfIn PDF document text
    • https://xupotigoxurope.weebly.com/uploads/1/3/4/6/134657266/1025360.pdfIn PDF document text
    • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/c25102e7.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/fejififimaketo/pewagiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/pioneer_woman_1800s.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/form_of_wedding_ceremony_crossword_puzzle_clue.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/consequences_will_never_be_the_same_remix.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/logic_gate_project_download.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_off0000c424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC424 5080 bytes
SHA-256: ec5f22f44fa867945bdb3bce9156e308ab186accd12290e646e05f2110e0b1c7
font_01_sfnt_off0000d552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD552 10084 bytes
SHA-256: 094fc2342cc938bb92f7f4918181fe3dc0c1bb7af105854d84c81abf98ae0fb8
font_02_sfnt_off0000f7ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BA 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.