Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4eabbb1bc56d6b3…

MALICIOUS

PDF

46.3 KB Created: 2020-11-02 08:14:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 51bad9196ff577d12efc516a2f1bd483 SHA-1: c83d892ea872d66f4e69f5818265a639c9d1630b SHA-256: c4eabbb1bc56d6b3a888588132e4262f21759e85ef6a5e15849b25cace3e7e0a
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests the document is designed to host numerous external links, likely for SEO manipulation or to distribute malicious content. The embedded URL 'https://ttraff.me/123?keyword=escape+plan+putlocker9' is identified as a malicious redirector, and the document body contains obfuscated text that includes this URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ttraff.me/123?keyword=escape+plan+putlocker9 In PDF document text
    • https://tejelodaburibav.weebly.com/uploads/1/3/4/3/134317360/leresi.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://cdn.shopify.com/s/files/1/0268/7752/6186/files/xagekuwulis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9661/4079/files/battery_status_bar_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/tm_sign_in_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/0998/2631/files/lirigixusab.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/wajupupewumexaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/7935/7375/files/palavejobomasojanulotopu.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/72805634687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/8364/2049/files/wuwid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2007/3150/files/formulas_areas_volumenes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1fc76d8-a724-4a42-bf7e-90b617d7a364/peg_perego_thomas_the_train_ride_on.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/9391/5285/files/good_life_property_management_yelp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23f5aa37-c631-4bec-9b20-4a7a760714ae/bobenirefus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7721/5408/files/1158597868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/9245/6641/files/40165621488.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_off00006810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6810 4940 bytes
SHA-256: f4acdc47599f524c8d142c0fca171b9be89304cb8aecb3bf36f589ccad659106
font_01_sfnt_off000078e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E4 10776 bytes
SHA-256: d47b32790bdcd994c5074cca0820b8e26f603f176754024d985c7bdbcce6fb41
font_02_sfnt_off00009dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCD 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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