Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2265dd070043ff8…

MALICIOUS

PDF

45.4 KB Created: 2020-08-04 22:45:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b4ff992fe42b225ca1967874217c2ad SHA-1: 955b79cc15663cf3a4f55da4e06d6c04cc6bc195 SHA-256: f2265dd070043ff8651b70f37847a5056d1adb13148f80221efc3d381ad56c42
140 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with the primary one leading to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a translation context, which is likely a lure. The presence of a callback phishing lure heuristic further supports the social engineering aspect of this attack. The embedded URLs are designed to redirect users to potentially malicious content.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=t%25C5%2582umaczenie+zda%25C5%2584+angielski+pdf
    • http://files.westchorus.com/uploads/1/3/2/6/132683181/bimamojuzusuw_kazifonefe.pdf
    • http://files.coffeejustgothealthier.com/uploads/1/3/0/9/130969904/0c3b0409f2b283b.pdf
    • http://files.spsyc.online/uploads/1/3/1/8/131856545/08e34.pdf
    • http://files.thesetbuilder.org/uploads/1/3/1/3/131378780/getatifani.pdf
    • http://files.thecitydesk.com/uploads/1/3/1/6/131637218/15fa4e184963.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/34971037572.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/nozuzefaxojirorux.pdf
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/15096462632.pdf
    • https://cdn.shopify.com/s/files/1/0431/8802/7556/files/36102284348.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/52835156380.pdf
    • https://cdn.shopify.com/s/files/1/0437/1110/3128/files/political_economy_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/81547428422.pdf
    • https://cdn.shopify.com/s/files/1/0430/6999/7217/files/25162686268.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/89561834731.pdf
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/yahtzee_simulator_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/nerononitu.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_off00006eb4.bin
d41b796f3dfdd5e18aa11bc58032551409b8026d1a2a7c246d96dc6e11284bff
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB4 5624 bytes
font_01_sfnt_off0000819f.bin
8c15ace8fc198697c5299801fe59567c11d23ce9ac950bd9128c97ac34669c33
pdf-font-stream PDF embedded font (sfnt) at offset 0x819F 11568 bytes