Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07ff9d99e7fd468…

MALICIOUS

PDF

48.0 KB Created: 2020-08-02 11:51:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ed86cf00da2abf719105e173dea5850 SHA-1: 48ad6e0a2c8a73d8639668cd7a4c2d2c9d64c080 SHA-256: d07ff9d99e7fd468d18a83061a7465dd63c65ae5315a73476a994bf5b691dac2
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector (ttraff.cc), and another identified a link farm of PDFs. The document body contains garbled text but includes the malicious redirector URL. No scripts were extracted from this sample. The primary attack pattern appears to be a link farm designed to distribute malicious content or lead users to phishing pages.

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=grow+rpg+walkthru
    • http://files.stephanierupp.org/uploads/1/3/0/8/130813317/bejipojexetiwar.pdf
    • http://files.andressachicano.com/uploads/1/3/2/6/132683070/xekedusi_bumidomutaz.pdf
    • http://files.crystalpalmsrvpark.com/uploads/1/3/0/7/130775851/wemaj.pdf
    • http://files.hoovesandpaws.org/uploads/1/3/0/9/130969357/2c9a7a8.pdf
    • http://files.teamwoodsblitchfishing.com/uploads/1/3/2/7/132710717/porajug-pejefokelowise-minipe-mubemixulen.pdf
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/29623971299.pdf
    • https://cdn.shopify.com/s/files/1/0439/3825/0910/files/state_of_florida_earning_statement.pdf
    • https://cdn.shopify.com/s/files/1/0433/3800/6686/files/32860688362.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/lonowizo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3177/2835/files/xogubavaxirunogosuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/jaliketipozejata.pdf
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/19894817799.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/8209687589.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/mafukakoxab.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokisesuzarutaxiwiru.pdf
    • https://cdn.shopify.com/s/files/1/0439/9159/7214/files/xujufosozexotijunerorurom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/fisojaxajapudobomira.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_off00006e91.bin
3ae7cf35c7c0fdb45707657f1988d0be627cc1cdde97d337210f51a5a5e260ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E91 4096 bytes
font_01_sfnt_off00007d0b.bin
df973e1e547fb09e17e81a3beab23a5028c136d666d1e9ad7a9d7d620ee462e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0B 5092 bytes
font_02_sfnt_off00008e71.bin
0c87bc7fae64dc2f6c1e0055c9378105faa4cc7f79de5ca7dda9138a3e17766e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E71 10860 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.