Malicious PDF — malware analysis report

Static analysis result for SHA-256 a80bab747fbfec8a…

MALICIOUS

PDF

42.2 KB Created: 2020-08-19 05:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0eadb8a7791cbf75e0c6ed918a4c7072 SHA-1: 9511a4402bf088cefa986e05bd989d37828088fc SHA-256: a80bab747fbfec8a8e8588f41ba03a69e2a465e7d212e1544d8ac618fcfb0449
128 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious domain, disguised as a document download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of links, many pointing to benign Shopify URLs, likely to obscure the malicious redirector. The document body contains the lure text '12th class result 2019 pdf' and the malicious URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=12th+class+result+2019+pdf
    • http://files.tallenphotos.com/uploads/1/3/1/6/131637177/zaxeki.pdf
    • http://files.xosoft.eu/uploads/1/3/1/4/131482886/konunutileposamiwox.pdf
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/self_esteem_affirmations_louise_hay.pdf
    • https://cdn.shopify.com/s/files/1/0443/0092/7132/files/91839617184.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/desumabog.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/zinironaxujarozamenulir.pdf
    • https://cdn.shopify.com/s/files/1/0438/0770/3201/files/2016006822.pdf
    • https://cdn.shopify.com/s/files/1/0432/8584/0036/files/internet_speed_test_manager.pdf
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/linux_administration_commands.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9204741539.pdf
    • https://cdn.shopify.com/s/files/1/0437/0920/2597/files/nibitiwovapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/wutojasepebijum.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/3d_archive_lamp_model_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/bufisomufixo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/82046912556.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/fadasezevudorukizuk.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_off00006652.bin
56a25d4cf803e5e0a90607ecc713e7d7abd09ef0fdc296f7e8ec110bc8164f22
pdf-font-stream PDF embedded font (sfnt) at offset 0x6652 5632 bytes
font_01_sfnt_off00007966.bin
c58fadeca4ab9e478a2ee9c5fd288a2d9a0a9e31e7aebb984241238eebb4f766
pdf-font-stream PDF embedded font (sfnt) at offset 0x7966 10128 bytes