Malicious PDF — malware analysis report

Static analysis result for SHA-256 db2d5a7d9a5d7b61…

MALICIOUS

PDF

32.0 KB Created: 2020-08-22 23:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eecab26d4ef5ed9f1b97dc05a9e0b1d SHA-1: 61c72cf3eb14ea961e19571013845eb4189abeb1 SHA-256: db2d5a7d9a5d7b619922ae1b61c13f595fc71d9c4a63726331cb8791fc293166
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=afghan+jalebi+new+song'. The document body, though heavily obfuscated, also contains this URL, indicating the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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/pify?keyword=afghan+jalebi+new+song
    • http://zekokif.goldenreiki.co.nz/uploads/1/3/1/4/131438304/dorebevofejinezeg.pdf
    • http://files.stpatricknf.ca/uploads/1/3/1/8/131857402/4a561e9e525698c.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/r7000_dd-_wrt.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/datuloliwovezedixadibuzi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/lowes_highland_heights_ky.pdf
    • https://cdn.shopify.com/s/files/1/0434/2985/5393/files/partnership_deed_in_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/34455778192.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/dachstein_glacier_snow_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/imran_khan_satisfya_movie_songs.pdf
    • https://cdn.shopify.com/s/files/1/0463/0295/3629/files/26618046302.pdf
    • https://cdn.shopify.com/s/files/1/0438/2461/1478/files/judajokenilegavu.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_off00003f37.bin
19c8546f73a9b77b4585a1ef40ad15fb3f956f95cc5563a95a97a7a1ab834517		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F37 5228 bytes
font_01_sfnt_off0000511b.bin
eaaddc086a597dd42ee1d71dc96a7ede92e7fff8ee1bdb2d306deeaa747063db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x511B 9708 bytes

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