Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d42ad38a7d289ea…

MALICIOUS

PDF

45.2 KB Created: 2020-09-17 19:42:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5779115f6f98efaa5c00be62d78132b2 SHA-1: bc4e0de748121e659d9d58a2677f90605323fd87 SHA-256: 3d42ad38a7d289ea518e2c7fb0f368b7253872db121136c970c198f67ab1e50d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to distribute content. One critical heuristic identified a direct link to a known malicious redirector, ttraff.me, which is presented in the document body as a 'Weber style thermometer manual'. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for phishing or malware delivery. No scripts were extracted from this sample.

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.me/wix?keyword=weber+style+thermometer+manual+32908
    • http://files.projectq.co.uk/uploads/1/3/0/7/130776162/75d9fdc0531.pdf
    • http://nuzomi.pivotalchange.ca/uploads/1/3/1/6/131637254/740607a2f.pdf
    • http://files.samanthabachmanart.com/uploads/1/3/1/0/131070722/61fd238635bb99b.pdf
    • http://files.thepineapplecarriage.com/uploads/1/3/1/3/131380934/xilarexisajul-nanoxezenewufod-vukofikovinup.pdf
    • https://cdn.shopify.com/s/files/1/0437/8587/9704/files/ansi_c_file.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/8083374244.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/amc_lennox_town_center_24_columbus_oh.pdf
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/letter_g_coloring_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0483/0150/6721/files/framed_perspective_vol._1_technical_perspective_and_visual_storytelling_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/3002744594.pdf
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/23777391959.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33971068516.pdf
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/android_auto_apk_4._5._59.pdf
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/treatment_of_ovarian_cancer.pdf
    • https://cdn.shopify.com/s/files/1/0428/6955/5359/files/pefavepavofa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/6526370086.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/97971709935.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_off00006a78.bin
52ebb5fedb5df8e2150fa4b662ef3bd88ab8b5734ceb74a536a17fa874031fd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A78 5968 bytes
font_01_sfnt_off00007e99.bin
8b6a890617b3b4f31f934e6709c8222bd9917c157082ad5fd78de1bf6ecfe913
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E99 12484 bytes