Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d8af1b1653a1c4…

MALICIOUS

PDF

73.4 KB Created: 2020-12-19 11:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 41f7f80a4af52c51bf07dd72b7ae2cb7 SHA-1: 6a7dd4d2529a55ed4c8784858b857a0bcb2830dc SHA-256: 46d8af1b1653a1c4d3c5cbba1d7d6d7d2ec2e624011edc6accaef3ed37dd46e8
214 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffmen.ru'. The document body, though heavily obfuscated, contains text suggesting a lure related to an iPhone notification. The presence of numerous embedded links, including the malicious one, indicates an attempt to direct the user to a harmful site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/aws?utm_term=my+iphone+says+answered+on+another+device In PDF document text
    • https://mudomuroda.weebly.com/uploads/1/3/4/7/134728654/7313641.pdfIn 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/fa45e82f-5a22-4b52-9c8f-6eb4cf6f9c47/poror.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d1b09c-2f51-4014-b56a-8368c48d549b/bonojuwafusesojozupigis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ec1b7848ba205d25c866/t/5fc9c7ca87b36f46d4ffa097/1607059404078/fios_tv_packages_channel_list.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28935f9866f3fd2de9ed8/t/5fcdaee80ab5d62feb104d9b/1607315176764/12596282390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/049eb58a-0995-43d7-b725-3a13b2050e7c/a_microscale_approach_to_organic_lab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a70a6c27-83ae-4038-8136-d8bdbc1f0c1e/83345218932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44b94ade-a48e-47dc-ac97-614744d67981/jomezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7f70638-db55-47b4-bf94-54ce76eba1fa/mortal_kombat_2_snes_cheat_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/637eb73a-a9a8-4748-9b42-a06759efd07a/fort_bliss_family_homes_facebook.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_off0000e0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C3 5388 bytes
SHA-256: 9c6b26f825f6609ef3b1e522ac269cc2ec1220cc3da153f46e3d5f39dcb64b0a
font_01_sfnt_off0000f33a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33A 11136 bytes
SHA-256: 86b27ba079759331a7ae4846800522b0bb37b998e2e7f94877457cc1a109ab40

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