Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f460636557328b3…

MALICIOUS

PDF

49.0 KB Created: 2020-07-31 07:14:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ae7ee3d46def5b6ce686545d67f65bf SHA-1: 30b710a16b6eda982815fb21b37b8db99082a52b SHA-256: 1f460636557328b3691fe67850d2a84c64a9e75c063c65400ad0dda9b8a44896
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, with one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to the 'Pradhan Mantri Awas Yojana' scheme, indicating a phishing or social engineering attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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=pradhan+mantri+awas+yojana+download+application+form+pdf+file
    • http://files.kerrysiggins.com/uploads/1/3/0/8/130874090/kadiwazurixu-dofiluziwojizer-ninekexi.pdf
    • http://files.kayalaterman.com/uploads/1/3/2/6/132681409/6752323.pdf
    • http://files.6thstagnesscoutinggroup.com/uploads/1/3/1/1/131164153/wajigitete_xoketidiloxomo_xobenekowagiwik_wovifok.pdf
    • http://files.millennial-pages.com/uploads/1/3/2/6/132682404/wowikepi-firow-ruvirob-navepapavufus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/19082162979.pdf
    • https://cdn.shopify.com/s/files/1/0434/5095/7991/files/72822760677.pdf
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/momexazazeziruved.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7177/files/jisikofumuramiditifikad.pdf
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/nuxuda.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/zozejapej.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/93790274509.pdf
    • https://cdn.shopify.com/s/files/1/0436/1561/7182/files/62107402833.pdf
    • https://cdn.shopify.com/s/files/1/0433/7998/2492/files/tazagavopililajanane.pdf
    • https://cdn.shopify.com/s/files/1/0428/0995/0367/files/wixaradejisupazekipi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6396/files/78587594144.pdf
    • https://cdn.shopify.com/s/files/1/0430/1727/3497/files/likebelimegobivowulimix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f8c.bin
1c675f798bf549312cac00386fca942b03a31996d21ef438c57cfd0608ca7fb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F8C 5452 bytes
font_01_sfnt_off000091fc.bin
d5ffef26e63f54a339941f2d97119e24c89e028f4e628f7cef52fb35f8b94bd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91FC 10564 bytes

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