Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a15277ea87998dd…

MALICIOUS

PDF

50.5 KB Created: 2020-08-21 21:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b4127702efb1393b2fbe831f525671f SHA-1: 81f846d1c6ae202be3bbea32b561e118d64c7aa3 SHA-256: 5a15277ea87998ddf50616902fb6444dc8d85ca6d00cdafd1909de6a311b8873
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=64th+filmfare+awards+2019'. This link is presented within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, but the primary malicious indicator is the ttraff.cc redirector. The document body itself is heavily obfuscated but contains the same lure text and the malicious URL.

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.cc/pify?keyword=64th+filmfare+awards+2019
    • http://konumele.followtheleaderedu.com/uploads/1/3/1/3/131383483/lugesusopeponizawi.pdf
    • http://files.tallentfineart.com/uploads/1/3/0/9/130969580/pimopanedamutoje.pdf
    • http://files.yurileving.com/uploads/1/3/0/8/130813458/vufotitajala.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/91296793808.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53551688275.pdf
    • https://cdn.shopify.com/s/files/1/0457/0808/3356/files/reported_speech_statements_exercises_printable.pdf
    • https://cdn.shopify.com/s/files/1/0430/4083/3690/files/jakewezizikufuvadiguwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/basketball_history_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0449/8318/9662/files/physical_appearance_adjectives_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8022/files/ap_biology_textbook_campbell_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/36033754747.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/prescription_for_nutritional_healing_free_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068c2.bin
8fb2a198befd3dc762cd9ec8960c3a078864c3cc0c5ae04b1bf3222fdb1bac6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x68C2 5440 bytes
font_01_sfnt_off00007b46.bin
54b709a35c6a099c18198c6308a3cd4084cb19e2bd66196abd0283b786bd8f45
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B46 11892 bytes
font_02_sfnt_off0000a1c3.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1C3 4324 bytes
font_03_sfnt_off0000afc4.bin
5285f1c25d099badc367a60fd22bc8d0601fc4db768b1d0246964fbabd0f7ea7
pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC4 3244 bytes