Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d70c1d4b1c3e50a…

MALICIOUS

PDF

49.7 KB Created: 2020-09-08 08:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e876c6db896c694eba298d09fb297b0 SHA-1: ba5e369cb9615bb09aad0c123eef20adc2919182 SHA-256: 7d70c1d4b1c3e50ae6eb9628b64f476dea2b07f6d2d6475b34aadcae87c04c69
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=believing+in+me+a+child%2527+s+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0433/7732/8278/files/xuvogonojopuxogan.pdf'. The document body, though partially corrupted, contains text suggesting a lure related to a 'child's guide', reinforcing the malicious intent of redirecting users to potentially harmful content.

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.me/wix?keyword=believing+in+me+a+child%2527+s+guide
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/xuvogonojopuxogan.pdf
    • https://cdn.shopify.com/s/files/1/0435/4041/4615/files/72668762953.pdf
    • https://cdn.shopify.com/s/files/1/0434/1415/9521/files/talirapisesafefixelanemed.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/68610964067.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/71769481167.pdf
    • https://static.usrfiles.com/ugd/b8c837_508d2701a4ec4ecdafc3834678ae5a3d.pdf
    • https://static.usrfiles.com/ugd/a421e3_ad063085edb94ecdbf2b988a443771ce.pdf
    • https://static.usrfiles.com/ugd/dbbfd0_abec53f080ad4012a9fa243403434da8.pdf
    • https://cdn.shopify.com/s/files/1/0435/1626/4616/files/vuweduvedesod.pdf
    • https://cdn.shopify.com/s/files/1/0430/3064/2837/files/mukoremifezewibugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8369/4247/files/allok_converter_free_full_version.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_off0000851a.bin
a0ab21ceccc8dc594be4ded3e809d2b102cd19f1f37f6db50ce9d79df28aa694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x851A 5400 bytes
font_01_sfnt_off00009762.bin
06636778741bccdd4fc598f68c2e51b4ddb1132ae9cfbbd4cb1bd10e87d3d632		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9762 10240 bytes

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