Malicious PDF — malware analysis report

Static analysis result for SHA-256 5381b1bda8c5a2e7…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 01:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a599f1840d3546557faa3c48f4de6f2 SHA-1: ab4f21b6a60966efe43aaf57202191fef1de8799 SHA-256: 5381b1bda8c5a2e749b8abeeaacdceed4d808710696d9ce9c4404e2a31003236
128 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, which points to 'https://ttraff.ru/pify?keyword=template+ppt+islamic+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body also contains a call-to-action phrase, suggesting a lure to click on these links. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=template+ppt+islamic+free
    • http://files.captainstinkyandsailorpuss.com/uploads/1/3/0/7/130776088/8649604.pdf
    • http://files.kirtansongbook.com/uploads/1/3/2/3/132303035/013fe4545cb8dc.pdf
    • http://files.lacnyc.org/uploads/1/3/0/7/130738765/baloxixusid.pdf
    • http://files.casa-collective.com/uploads/1/3/0/9/130969768/7834245.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7110/files/91705878039.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/adhurs_telugu_hd_video_songs.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/call_down_the_hawk.pdf
    • https://cdn.shopify.com/s/files/1/0435/2930/6272/files/introduction_to_data_structures_and_algorithm.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9768/files/ganpati_atharvashirsha_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/what_is_the_rarest_block_in_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/korolubopexetiviregifalax.pdf
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/varicose_veins_nhs.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/postoperative_apnea_in_former_preterm_infants.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/gurubudetabajogupakorum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/middle_school_vocabulary_worksheets.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_off00005a42.bin
106ef596fa38fcb451ef78ec849b888391e76c63dacb0080c18beedd62e1b615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A42 4684 bytes
font_01_sfnt_off00006a13.bin
6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A13 1800 bytes
font_02_sfnt_off000072a3.bin
92e4d5fd32632277990c0068b064aa459c6cf0da3f2015c4c1d9c7ce3bf2b89d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A3 10000 bytes
font_03_sfnt_off000094d8.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94D8 4324 bytes

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