Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ef7389a181954c…

MALICIOUS

PDF

67.7 KB Created: 2020-08-11 10:58:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 547ba5a325a10242adc395d91afd8f06 SHA-1: f70ce939537972d269fd4fedfbe33ac95b434171 SHA-256: b1ef7389a181954c85fc91af263333fe710ceb780a60a92b5c026598a422acc8
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to look like a search for a popular book. This URL is part of a link farm, with many other links pointing to various PDF files, likely to improve search engine ranking and obscure the malicious destination. The primary malicious URL is https://ttraff.com/wb?keyword=the%20witcher%20book%20the%20last%20wish%20pdf.

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/wb?keyword=the%20witcher%20book%20the%20last%20wish%20pdf
    • http://files.faithfullybold.com/uploads/1/3/1/0/131071315/xelazatepel-bivafafo-rozoxadosed-gikexafovo.pdf
    • http://koremavot.chocolatewholesalestore.com/uploads/1/3/0/8/130814179/3786196.pdf
    • http://files.theseedofgod.com/uploads/1/3/1/6/131606313/noravexukobavi.pdf
    • http://files.walescoastpath.info/uploads/1/3/1/8/131871745/8992801.pdf
    • http://files.fairmontelementaryfarm.com/uploads/1/3/0/8/130874587/e83a0be880585.pdf
    • https://cdn.shopify.com/s/files/1/0448/9238/9531/files/atresia_esofagica_e_intestinal.pdf
    • https://cdn.shopify.com/s/files/1/0431/6626/9597/files/academic_and_professional_writing_skills.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6262/files/13797883830.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/83024363007.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7451/9191/files/xefuwatamonid.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/22513511833.pdf
    • https://cdn.shopify.com/s/files/1/0431/3756/4838/files/reinventing_leadership_warren_bennis.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8206/files/towedasurugixupuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/8035/1897/files/valuwibuvamonojuledin.pdf
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/breckenridge_weather_15_day_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0437/1926/2357/files/bizowolejuvawegum.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/85275692942.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_off000096ab.bin
15eda3f8097354b1fd16a71419ca43d951f474ccee991019698ccdbe2041c94a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96AB 8412 bytes
font_01_sfnt_off0000b311.bin
3a799699eee737f0f33a9dbc2f243e11c7ffda06367e9fde7a1e3762a4967e1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB311 5168 bytes
font_02_sfnt_off0000c4be.bin
b9057dd68d877d3524399082d0d5a6ea42a11020606bb151456481bef0e53dd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC4BE 14956 bytes
font_03_sfnt_off0000f199.bin
781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF199 4324 bytes

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