Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4f775962db60217…

MALICIOUS

PDF

46.7 KB Created: 2020-08-27 18:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d641fa953f1c458809774175d5caa9e SHA-1: 108345b1f03b42a66894bf4ee26c7b928bf2af0f SHA-256: f4f775962db602179ffdcf90ec1691a390a3a893739f4bbca180c02ef0f92fbd
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=baishe+srabon+bengali+movie+free'. This URL is presented as a lure for a movie download, indicating a social engineering tactic. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector. The primary intent appears to be redirecting users to malicious infrastructure.

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=baishe+srabon+bengali+movie+free
    • http://biwoxariv.mhes-ses-bandstrings.com/uploads/1/3/0/7/130776132/83f9b973bfd75e6.pdf
    • http://files.triumphantleadersmentoring.org/uploads/1/3/1/1/131164295/0df5002a62d855.pdf
    • http://bemugewij.simplycandyco.com/uploads/1/3/0/7/130738943/vexupizuvuk-winidodib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0743/4142/files/59574399150.pdf
    • https://cdn.shopify.com/s/files/1/0434/0957/1997/files/mojukesuxebu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2109/1484/files/bitol.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4882/files/73177236042.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/19964573615.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1868/files/double_spaced_lined_paper_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/bosch_mass_air_flow_sensor.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/larupituvelijobe.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/nipuvulijufixojasusevo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9280/1704/files/wuvuzuponexuvosodosi.pdf
    • https://cdn.shopify.com/s/files/1/0459/7140/7015/files/4liker_apk_instagram_followers.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/47463384937.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_off000068b0.bin
2b891eebed839536614fe115d1f052dd1cd114cd7774be27295f245891b93804
pdf-font-stream PDF embedded font (sfnt) at offset 0x68B0 5432 bytes
font_01_sfnt_off00007afe.bin
70a32fcb22f0a0574ef2ddff0f867a901f7fffb41e559afcb353810331a21d99
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFE 4716 bytes
font_02_sfnt_off000089d9.bin
29be0c1a532d1de6626283d32f9f3b8ecf77836a4dc12254757205ca0181ec16
pdf-font-stream PDF embedded font (sfnt) at offset 0x89D9 10352 bytes