Malicious PDF — malware analysis report

Static analysis result for SHA-256 8201c3c06ba6a361…

MALICIOUS

PDF

62.6 KB Created: 2020-08-31 23:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68696b143b81bd7a3d4ce5c425492f12 SHA-1: 462bb6fdcfc21a15562e655453f98db977b56ed7 SHA-256: 8201c3c06ba6a3619309112e6c8bbba7765c43dc5586c3c5764e04fa8da1db1e
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to 'use and abuse of internet pdf file' and a URL pointing to a redirector. This suggests a phishing or social engineering attack aiming to redirect the user to malicious 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.com/pify?keyword=use+and+abuse+of+internet+pdf+file
    • https://cdn.shopify.com/s/files/1/0463/4869/7757/files/sewexefudazu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/k-_tel_albums.pdf
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/81371978487.pdf
    • https://cdn.shopify.com/s/files/1/0440/7921/8838/files/how_to_shade_minecraft_skins.pdf
    • https://static.usrfiles.com/ugd/eda9ba_f7bbf8e9c9904cb590def5ec8ab35219.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_7bfdbdaba892444b913c6e3c78a1682a.pdf
    • https://static.usrfiles.com/ugd/ca300b_82956568bd8e4df885adb4742542c591.pdf
    • https://cdn.shopify.com/s/files/1/0437/9728/2977/files/caustic_soda_sds.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/wamojoxanobi.pdf
    • https://cdn.shopify.com/s/files/1/0465/2328/5662/files/karigimogesul.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8300/files/sql_database_2012.pdf
    • https://static.usrfiles.com/ugd/c1108c_7b439117d64e40f09972b9a4498bebaa.pdf
    • https://static.usrfiles.com/ugd/b8c837_0dd76032c2fb4879846c6c50cf3f39df.pdf
    • https://static.usrfiles.com/ugd/b8c837_c96740ab6ee34f53860dfc5eaa2c8316.pdf
    • https://static.usrfiles.com/ugd/b8c837_39d35689cf7343b5be459bd2bf20f237.pdf
    • https://static.usrfiles.com/ugd/b8c837_73f291fefe554f6cb4345bd5383cd736.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/
    • https://static.usrfiles.com/ugd/b

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a15c.bin
ce634461f376591ab76556e8348e4c444cce5efdb3dc405bc7c8df89bebf97c3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA15C 5168 bytes
font_01_sfnt_off0000b2fa.bin
01f63a6a10c92b415e5ca914c92a9f59e32105ee30a31b8fd0d04048785f24ed
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FA 10696 bytes
font_02_sfnt_off0000d7b8.bin
5c0628dbf798e4a535d390b53ed5468c5dd6fcca9bc1e58e366025aad80fe5b5
pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B8 16084 bytes