Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a01ba2d84b34cc…

MALICIOUS

PDF

39.5 KB Created: 2020-08-24 19:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16fe0259e48cf69d9e468185d349bd10 SHA-1: b1175d7ec2c247d2dcf2310eb9e4c22b55b12662 SHA-256: d4a01ba2d84b34ccf1a79107c05efd8be4ee57d0dd9431cedc06567a0d62c355
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=basal+temperature+chart+template+celsius'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious activity appears to be redirection via embedded links.

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.cc/pify?keyword=basal+temperature+chart+template+celsius
    • http://riwolid.laidprettyboutique.com/uploads/1/3/1/4/131452836/mexutodig.pdf
    • http://sufaxofiw.thecountup.com/uploads/1/3/1/8/131856877/b8eaaf91f.pdf
    • http://files.dazzlewithdella.com/uploads/1/3/1/1/131163841/d31c4.pdf
    • http://mevolabep.florianatorelli.com/uploads/1/3/2/6/132696212/6377128.pdf
    • https://cdn.shopify.com/s/files/1/0434/0393/5902/files/sorting_algorithms_cheat_sheet_java.pdf
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/le_verbe_avoir_au_present_exercices.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/23049620916.pdf
    • https://cdn.shopify.com/s/files/1/0434/4722/2422/files/metenapazejejupatavukope.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/zitabadukaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/8094/1721/files/dawapipegu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/risk_management_plan_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/girugadolokowugokujus.pdf
    • https://cdn.shopify.com/s/files/1/0433/4387/2153/files/free_car_rental_receipt_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/7563/2285/files/mikopujabogoraxavozaxad.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/97021099800.pdf
    • https://cdn.shopify.com/s/files/1/0443/9041/6550/files/stockholm_bryony_lavery.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/27498984758.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/
    • https://cdn.shopify.com/s

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b91.bin
e33ac56797871ef6773330e8a819622a17a3a54d7d1492102bd1525f3a71c2a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B91 5224 bytes
font_01_sfnt_off00006d26.bin
5c3080cc82cd78a851b80866cf6e114f3fa2cfc62f6dbb86e2c63d3727fac36a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D26 10420 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.