Malicious PDF — malware analysis report

Static analysis result for SHA-256 062c3b78469b1c4c…

MALICIOUS

PDF

51.9 KB Created: 2020-08-31 22:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fb1b4185acd851d5172092d308315cb SHA-1: 3c3639390ed50932880831e252a397a8b07adf1d SHA-256: 062c3b78469b1c4cde88c85f158a8633a11ee3699af5530b969929b57533dbca
154 Risk Score

Malware Insights

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

The PDF contains a link to 'ttraff.com', identified as a malicious redirector, which is likely intended to lead the user to a phishing or malware distribution site. The document body and embedded links suggest a lure related to 'formation carreleur montreal', indicating a targeted phishing attempt. The presence of numerous embedded links, many pointing to Shopify, suggests a link farm designed to obscure the ultimate destination and potentially evade detection.

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.com/wix?keyword=formation+carreleur+montreal
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/zonigalajujoxonupetesukar.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdf
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/albertine_sarrazin_astragal.pdf
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/programa_para_unir.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/gemesamigatar.pdf
    • https://cdn.shopify.com/s/files/1/0430/4591/2727/files/angeles_y_demonios_online.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/27003466932.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/ginojixe.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/bodybuilding_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/sukitawoxemiburi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/73713996308.pdf
    • https://static.usrfiles.com/ugd/39cb9d_cdb410d8bcc44e5eb492e4c58c8fa565.pdf
    • https://static.usrfiles.com/ugd/b4609a_9c9dea1159df4aa6bb71232eff179c08.pdf
    • https://static.usrfiles.com/ugd/078c79_1824320818bc414b9e0bafa986538c95.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077d2.bin
51bd8593081ec66169f43c835ffdb6fd6ffe574df61b7fce8170f951a028a28f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D2 4604 bytes
font_01_sfnt_off0000874d.bin
7044595ccbed3249ec5b976cb5280fe9009b446edc6b2d6f4f5e7314c3f067b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x874D 14596 bytes
font_02_sfnt_off0000b4fc.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FC 4324 bytes

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