Malicious PDF — malware analysis report

Static analysis result for SHA-256 23dbfd2deefbcd43…

MALICIOUS

PDF

38.4 KB Created: 2020-08-20 01:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6968d457a62c6ed692403c00f0ecba43 SHA-1: 3a8d8bfaa8263b13405f074c7e05827d9d2263a7 SHA-256: 23dbfd2deefbcd43f92810446e84bd1586a038e6bfa7e8278834a81ff2b5f08c
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive link presented as a guide to "Game of Thrones". This link, found in the document body and flagged by heuristics, redirects to `ttraff.com`, which is identified as malicious infrastructure. The PDF also exhibits characteristics of a link farm, containing numerous external links, many hosted on `cdn.shopify.com`. The primary attack vector appears to be social engineering, tricking the user into clicking the malicious link.

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=game+of+thrones+hilarious+beginners+guide
    • http://files.daydreemz.net/uploads/1/3/0/7/130776757/dajudafezomalaz.pdf
    • http://files.leviteministry.com/uploads/1/3/1/3/131381540/sudetubasuful.pdf
    • https://cdn.shopify.com/s/files/1/0431/6289/4495/files/wawawenavediwema.pdf
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/adele_hometown_glory._mp3.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/buxonixosupajabojexogivu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0593/4759/files/sefevufanukemikaxidijosa.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/73105231625.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/56996091754.pdf
    • https://cdn.shopify.com/s/files/1/0455/3352/8229/files/bryce_national_park_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/8516/7766/files/viponenogawe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/1278623472.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_off00004dc0.bin
1ef5ce2e571a85c13ab255e114fac1ba99a010d02239cfde1a5fd1c94fa07acb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC0 5372 bytes
font_01_sfnt_off00005fdc.bin
bc6e26d221a27a865335a2968f950ba12bb144f54a6c7e1f715e419b95fbff34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 9040 bytes
font_02_sfnt_off00007ebb.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBB 4324 bytes

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