Malicious PDF — malware analysis report

Static analysis result for SHA-256 a37dab233ee591be…

MALICIOUS

PDF

34.0 KB Created: 2020-08-31 09:11:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5261fb2aa0ef79923857bc43349d0d60 SHA-1: 6c09bbea7a946a85821e379d00fbb9722fe42925 SHA-256: a37dab233ee591bef90c728f20afa9cdc640a34a123b3432d05f6d2f3fc4ee58
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=where+to+find+a+zora+spear'. This URL is embedded within the document body, suggesting an attempt to trick the user into clicking it. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which point to benign Shopify domains but are likely part of a broader SEO manipulation or redirection scheme. 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.ru/wix?keyword=where+to+find+a+zora+spear
    • https://static.usrfiles.com/ugd/c1de29_6252b55d076f46c9881deda7e441e0c7.pdf
    • https://static.usrfiles.com/ugd/e643da_9bbf84b117f44196a3d0fcfaf1e4baab.pdf
    • https://static.usrfiles.com/ugd/3826db_243375eee02d427daa6aa7f192e3c671.pdf
    • https://static.usrfiles.com/ugd/3ce946_2974deb217384ebfbc5e9f18a26dfc74.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bc711463b5543f9bfda39dff8fea57d.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/anomalias_de_los_cromosomas_sexuales.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/54225242400.pdf
    • https://cdn.shopify.com/s/files/1/0432/8777/3342/files/68937986380.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/burasekobovevade.pdf
    • https://cdn.shopify.com/s/files/1/0434/7936/7845/files/78440015222.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5790/files/bawotegomotezuzofajowob.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_off00004797.bin
0c6ef1444c0a4eb58ba8316d44cfa0a779176d9cbd17ed203dbea562643b87e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4797 5160 bytes
font_01_sfnt_off00005937.bin
10f103358a12feff4e8b322538c715e29aaa2c2fec154bd48c795f255d6cae01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5937 10212 bytes

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