Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4c2a259c42ce84d…

MALICIOUS

PDF

41.8 KB Created: 2020-08-11 18:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87eeac4a148e4d75adcdb3a4bfc9e365 SHA-1: c19b7abd887f7980ccc2f177dd9f71e8dd5c7c47 SHA-256: f4c2a259c42ce84d6f8605739a2e943a6f0423bd66b8fd1f61ada3fd353cfa96
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content. The document body contains garbled text and embedded URLs, further supporting the malicious redirection attempt.

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=appareil+respiratoire+pdf+cm1
    • http://files.raysoflightboudoir.com/uploads/1/3/1/4/131437157/tojuzidasogako-nazejita-gukakumu-gutolubib.pdf
    • http://giziwi.suzonspice.com/uploads/1/3/1/3/131383483/forizurogefabagof.pdf
    • http://files.mrshaolebrownie.com/uploads/1/3/2/6/132682070/2d820.pdf
    • https://cdn.shopify.com/s/files/1/0444/5500/2279/files/calligraphy_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/vejemojeforiwefitit.pdf
    • https://cdn.shopify.com/s/files/1/0433/4478/9669/files/bojasizotopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/tasapexuwago.pdf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/temperamentos_test.pdf
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/febakigidafiwujopoxawuxig.pdf
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/mujodabegewilawegikozukis.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/rezowibawivusofiwedavotid.pdf
    • https://cdn.shopify.com/s/files/1/0437/1451/1001/files/netflix_my_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/gulesamupevizipuvudo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6464/0159/files/xowekalunamuwuguvuduju.pdf
    • https://cdn.shopify.com/s/files/1/0440/6883/1382/files/may_2020_calendar_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057dc.bin
7df20645526da6801e6899a17e7889c7af4ea5b74b2a9caef13663531b38612a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57DC 5024 bytes
font_01_sfnt_off000068f2.bin
bf4e7f2de3c5b359daa658512edc041c2966c10ae8cd4277a0ddae7eb751a14a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68F2 10580 bytes
font_02_sfnt_off00008aa4.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA4 4324 bytes

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