Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb105883bb4ff40d…

MALICIOUS

PDF

60.1 KB Created: 2020-09-14 02:23:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47092ee6a2a9794aeae93910ba55b3b3 SHA-1: 512f0d3de063351db31eabb085e4e07d6f9ae830 SHA-256: eb105883bb4ff40d33f89609a5f81598a00b990a9e9219ef27633466a833efed
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 external resources, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.link/wix?keyword=ap+environmental+science+unit+1+study+guide'. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution. 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.link/wix?keyword=ap+environmental+science+unit+1+study+guide
    • http://files.gcmartha.com/uploads/1/3/1/6/131606325/kafadodixowapinora.pdf
    • https://static.usrfiles.com/ugd/71fd01_43838ac9a767477487fa67306a32a3ca.pdf
    • https://static.usrfiles.com/ugd/a382ee_63a048fb9a1b4d81b07ffdedeb04a516.pdf
    • https://static.usrfiles.com/ugd/7aabb2_deecf07eea274241b70fb882e0cbbd04.pdf
    • https://static.usrfiles.com/ugd/5aec95_d01f1d4a402344beb7ebebaf779b9f61.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9842a2897bf4bdc9bb74fe7f8ce7dda.pdf
    • https://cdn.shopify.com/s/files/1/0431/6931/7020/files/libros_de_brittainy_c_cherry.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/boosie_no_juice.pdf
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/53298829756.pdf
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/85030683255.pdf
    • https://cdn.shopify.com/s/files/1/0450/7402/2550/files/eddie_torres_volume_1.pdf
    • https://static.usrfiles.com/ugd/6a4619_765ccbdfccaa4c81956fe653c946a6a1.pdf
    • https://static.usrfiles.com/ugd/e2c223_9e06cc737b344edfb08bb4e4675f93a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c4222a2bb39416ab97e7e796939993d.pdf
    • https://static.usrfiles.com/ugd/5f5755_e92667ff4fbd46bd9fdc1890d259d3bb.pdf
    • https://static.usrfiles.com/ugd/8da65f_94f985b8caa749099f043ead016c9398.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_off00006524.bin
185ae10a94e7a7c093af6868fe96c42ae4cf6c6ece1c1a57da0cf3057ccfabce
pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 5596 bytes
font_01_sfnt_off00007821.bin
528190cb973ef9015338bbea4d76ad1231922b284c3e9b18a888b190a6a39f8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7821 15472 bytes
font_02_sfnt_off0000a5f9.bin
5a65688d603ddffc4bf295e4de7b9c68df0e0a74b7a76133a02837eaa8eac365
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F9 10256 bytes
font_03_sfnt_off0000c93c.bin
4584f46d15eb833dede81f3b54c8dcdf76a44457a3a531f3e9f116b71c6bf79e
pdf-font-stream PDF embedded font (sfnt) at offset 0xC93C 17148 bytes