Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ad634b12b4057e…

MALICIOUS

PDF

53.2 KB Created: 2020-08-10 07:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec939649e10df3e83de417e15dcc2993 SHA-1: 130a1bd9f6b1e406bef81b3a0efe3807056f686d SHA-256: e2ad634b12b4057e70eb71ccdbc09a233a902112ed7d945c2ae0161baf66dce1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to 'Bangladesh map pdf file' and includes the malicious URL https://ttraff.cc/pify?keyword=bangladesh+map+pdf+file. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

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.cc/pify?keyword=bangladesh+map+pdf+file
    • http://files.lojyouth.com/uploads/1/3/0/8/130873997/xevamorajebag-winago-jadurakume-wobixop.pdf
    • http://files.nicoleangelique.com/uploads/1/3/0/9/130969818/bb5686.pdf
    • http://files.kenreif.com/uploads/1/3/2/3/132303013/4531457.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/dozapokum.pdf
    • https://cdn.shopify.com/s/files/1/0430/3755/6899/files/vigepodapamuwesafanide.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/1664920506.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/65406065531.pdf
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/42257231845.pdf
    • https://cdn.shopify.com/s/files/1/0434/4912/2983/files/gibinu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/tevititepujubijezeboxik.pdf
    • https://cdn.shopify.com/s/files/1/0431/0076/6369/files/fungsi_agama_islam.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/dubai_metro_route_map.pdf
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/xaloforinafijomibukexebi.pdf
    • https://cdn.shopify.com/s/files/1/0439/1596/8667/files/schneider_electric_db_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/givuxidinana.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/50708296688.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007224.bin
7bf7f9eeaba54813f950c54f3703e4f4dee8645e530524e87f783be9a5c66021		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7224 5408 bytes
font_01_sfnt_off00008467.bin
af91ca11e0179c0142bd71888a2912d47096bb88968307a6568a45d585bc8363		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8467 5812 bytes
font_02_sfnt_off00009780.bin
6233e88ef8a5033274b4516c644561b779ffd25439a3089ab29a7d1e3b48b758		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9780 15344 bytes

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