Malicious PDF — malware analysis report

Static analysis result for SHA-256 58d46ded880d9d18…

MALICIOUS

PDF

60.2 KB Created: 2020-12-11 22:20:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 53134fe9478e1314b7e0ae74975fe8f2 SHA-1: 1fedbb53be384e10b3eca1c2d536ec2bfbc6e8b2 SHA-256: 58d46ded880d9d18d5a10f6430bdac22c7ba6b4e00367d980f9b4e4e915ddaa2
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of a 'download button' heuristic and numerous external links, including one to 'trafffe.ru', suggests a phishing or malware distribution attempt. The document's content, though heavily obfuscated, appears to be a lure for movie downloads, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/aws?utm_term=hashar+full+movie++720p PDF link annotation
    • https://laxigozi.weebly.com/uploads/1/3/4/3/134361341/7173605.pdfIn PDF document text
    • https://fazulozuxili.weebly.com/uploads/1/3/4/6/134625369/4760dae035212d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc55556bdb33045eedfa18c/t/5fce5a56d336b863f0f3e9fc/1607359062272/swing_man_golf_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/15852937890.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdabb5ef-10e3-4e36-92ba-69229071e87f/72972661238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d811c307-9b9a-432c-966c-de1fd6f57acd/toot_it_and_boot_it_whosampled.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/koxofopatafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/467a77e3-eaf8-4998-a099-05cb841f5aea/vuwepamudo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c5fae41-745c-450b-84ac-7d33de024145/pirupan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca28d87d-b7f2-49ef-9b0f-3e3303d97810/78164127945.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/783eec23-982b-4c06-a1a1-7d5742be1f21/ip_man_3_movie_download_in_hindi_mp4.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE3E 5516 bytes
SHA-256: 3f15e8c6dc977779d2bd030f2b6f844e9b4c7e22190fdbe7236c599c19740f4b
font_01_sfnt_off0000c0e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E3 10440 bytes
SHA-256: 753d703628ee2c60b5a0783ef6c98d3e8a054a1bc745c48914c560f370277e98

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