Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5bdb383cea1f9e…

MALICIOUS

PDF

43.4 KB Created: 2020-09-17 14:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59a2535eb46b3ed0c5353241c574e41c SHA-1: d3337a553b57a218e5c0a6352867bce63022ca1b SHA-256: 4c5bdb383cea1f9e7a6da934153555921e61d2fce3512266fd83d68c0d27595d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to redirector infrastructure or link farms. The document body, though heavily obfuscated, contains text that appears to be related to game locations, likely serving as a lure. The primary malicious link identified is https://ttraff.club/wix?keyword=skyrim+shrine+blessing+locations, which is associated with malicious redirector activity.

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.club/wix?keyword=skyrim+shrine+blessing+locations
    • http://files.sacredspiritualalchemy.com/uploads/1/3/0/7/130739122/8403448.pdf
    • http://vufukefag.hilaryopperman.com/uploads/1/3/1/3/131380160/likotokazesubu.pdf
    • http://karedik.resilientpeople.ca/uploads/1/3/1/4/131454215/fafab.pdf
    • https://9aed8fbc-9c95-4b3d-ba02-f2799247d7a5.filesusr.com/ugd/98e298_341f0e1cf6ab44ecae0bfd30692ff520.pdf?index=true
    • https://18cf0396-1fd3-456d-833a-6041dd51911a.filesusr.com/ugd/bc0b97_2c02fbb4ca7d48b084ee851a59548445.pdf?index=true
    • https://2c01136f-4155-4a81-8418-94e751436402.filesusr.com/ugd/268ab1_3071c1204faa42e68b56fe2ddf1c4bf2.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0483/2126/5828/files/apuntate_terminale_corrig.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0300/files/90036697266.pdf
    • https://cdn.shopify.com/s/files/1/0441/0041/9736/files/14008420376.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/janiju.pdf
    • https://cdn.shopify.com/s/files/1/0469/0319/7856/files/rewapesakixuzeme.pdf
    • https://cdn.shopify.com/s/files/1/0438/3644/0726/files/25765296745.pdf
    • https://cdn.shopify.com/s/files/1/0486/3846/0062/files/8-4_practice_angles_of_elevation_and_depression.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_off00006a68.bin
e459c96cf33790b96ba653768d6763fc0d4ed9f9fd1f652e40c01bb601f45e20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A68 5620 bytes
font_01_sfnt_off00007d6a.bin
bd7e6778263cdece8da1db0a993fb13a5963c6bcc441f5c4b4550abce2899d15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6A 10492 bytes

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