Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcbee7373b5d7786…

MALICIOUS

PDF

54.4 KB Created: 2020-08-04 02:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c5a3680b30813f39295e4c753f9dd06 SHA-1: ebb867895be860ab0b498c3cb94226357b2e9058 SHA-256: bcbee7373b5d7786c3e0519c47b4ad2b426e73f9a262ebdb3e5d77452bf1a2e4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links, identified as a 'PDF SEO LINK FARM', designed to redirect users. One prominent link, 'https://ttraff.cc/pify?keyword=dmrc+metro+map+pdf+download', leads to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this malicious URL, suggesting a social engineering attempt to trick users into downloading potentially harmful content.

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=dmrc+metro+map+pdf+download
    • http://files.salinakennelclub.com/uploads/1/3/0/8/130813330/janexi.pdf
    • http://files.sharpfacetsgallery.com/uploads/1/3/1/3/131383934/vevab.pdf
    • http://files.007bondband.com/uploads/1/3/0/8/130873795/3c60b7c9e1557e3.pdf
    • http://files.learnguitar4fun.com/uploads/1/3/1/8/131856381/8522082.pdf
    • http://files.dbyj.com/uploads/1/3/1/4/131453174/tutima.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/xikadoruvefukin.pdf
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/pesov.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/35223617322.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8139/files/19399123778.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69901941500.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/xusas.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/java_platform_se_binary_not_responding.pdf
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/digital_electronics_questions_and_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/49396897284.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/negemabetezexelole.pdf
    • https://cdn.shopify.com/s/files/1/0435/3422/1466/files/muxojek.pdf
    • https://cdn.shopify.com/s/files/1/0431/7557/5703/files/nariwiwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/7848133066.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_off00009632.bin
dc31897260f14b086b8efc33461e9550523b1ebc4c86a08c39abe72d10a8ff4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9632 5212 bytes
font_01_sfnt_off0000a7ef.bin
43a159c6cdfc47de774cf7feec09f7fb411e7ae18a348272bbf25d19c1bdf4f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA7EF 10208 bytes