Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1ff3fc5a515feb6…

MALICIOUS

PDF

34.7 KB Created: 2020-08-11 02:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51ead45113ba4633b3d99e0c1fcd57d1 SHA-1: 1213eda6ca6532aeb7e85a0bab8a1a6deb30427d SHA-256: f1ff3fc5a515feb658b0d9cb88f5550759b53aae746d1a818be4a68db093b9a1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=pathfinder+bestiary+box+4+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF was found to contain a mass external PDF link farm, further supporting the malicious intent of distributing links to potentially harmful content. The document body, though heavily obfuscated, contains the same 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=pathfinder+bestiary+box+4+pdf
    • http://files.jylynch.ca/uploads/1/3/1/6/131637257/c02d2.pdf
    • http://files.marriagecelebranthilaryvaneldik.com/uploads/1/3/1/4/131438604/fd1ceaf8a83c4f.pdf
    • http://lapisuw.papayabranchboutique.com/uploads/1/3/2/6/132682663/6562256.pdf
    • http://files.jess-cbd.com/uploads/1/3/1/4/131483143/680103.pdf
    • http://kezuz.flamencoinsideout.com/uploads/1/3/0/7/130740051/5859806.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/fazofojovamub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/28308772468.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/cetoprofeno_gel.pdf
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/bebed.pdf
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/baukindergeld_2020_antrag.pdf
    • https://cdn.shopify.com/s/files/1/0440/2577/4245/files/68988227127.pdf
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/5310901379.pdf
    • https://cdn.shopify.com/s/files/1/0435/5106/4228/files/walenox.pdf
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/amazing_spider_man_comic.pdf
    • https://cdn.shopify.com/s/files/1/0449/2463/3243/files/how_to_make_minecraft_shield.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9512/files/reximizodiduwema.pdf
    • https://cdn.shopify.com/s/files/1/0432/6306/6270/files/certification_of_employment.pdf
    • https://cdn.shopify.com/s/files/1/0435/9412/1379/files/95294939144.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049c0.bin
1d447fc656d5cde981f2b7726d8ddafb30b4b87ad3dce7ce96b047f079f0b425
pdf-font-stream PDF embedded font (sfnt) at offset 0x49C0 5496 bytes
font_01_sfnt_off00005c6a.bin
c96b3016228e23e761b7713dc15344fe595c1dd5aa704acc78b96ff93cb4ca07
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6A 9812 bytes