Malicious PDF — malware analysis report

Static analysis result for SHA-256 882aa9a8ff27590e…

MALICIOUS

PDF

44.8 KB Created: 2020-09-09 11:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b83baad338a94664701b2cb2c1bb620 SHA-1: 056c72b4cf75440b555097e3fa9f1725468ba034 SHA-256: 882aa9a8ff27590e0aa6a5027c52b44805b1997a613b5ca17b8d3636efab90a5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=shri+amarnath+yatra+video'. This URL is presented within the document body, suggesting a social engineering lure related to the Shri Amarnath Yatra. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for obfuscation. 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.me/wix?keyword=shri+amarnath+yatra+video
    • https://static.usrfiles.com/ugd/9c0842_93b2a65d0a78467da99ba6761c0d218d.pdf
    • https://static.usrfiles.com/ugd/b4609a_b310556ae93b48d5b80186aaf72cc5f2.pdf
    • https://static.usrfiles.com/ugd/1d5a3f_c8f1fcb0243f4d07affb88ccc37a9bcf.pdf
    • https://cdn.shopify.com/s/files/1/0463/0439/5426/files/post_office_guide_part_1_2019.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/fixawuwozopedibebi.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/cpr_procedure_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/surveymonkey_allow_multiple_answers_to_multiple_choice.pdf
    • https://cdn.shopify.com/s/files/1/0432/4094/7880/files/orthographic_to_isometric_drawing_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0464/7177/4366/files/18277648384.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/50580984015.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0813/files/brain._fm_cracked_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/8466/0380/files/alt_j_left_hand_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/8793/6150/files/force_and_destiny_adventure.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/chirutha_telugu_songs_free_320kbps.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1726/files/free_james_patterson_books.pdf
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/anatomy_and_physiology_of_brain_and_nervous_system.pdf
    • https://cdn.shopify.com/s/files/1/0462/3145/3847/files/dazulegusibifejizezo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7162/7673/files/44392537751.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_off00005c8a.bin
8ea8c310b90e88839ece4255ca29d7c3c9c533227cb8403357aa91742b757c2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8A 4908 bytes
font_01_sfnt_off00006d12.bin
072e7a96ff656c240d11be07cbbe191d435f4f86e076ea530b3e30c019a8d7f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D12 13420 bytes
font_02_sfnt_off0000980c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x980C 4324 bytes