Malicious PDF — malware analysis report

Static analysis result for SHA-256 a213fd1d3f8cc2b2…

MALICIOUS

PDF

55.0 KB Created: 2020-09-12 02:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 901de59680a54beef418d03779b10616 SHA-1: ba1166e7d28ba30ceb32dd88103eff5268d3ee3c SHA-256: a213fd1d3f8cc2b2a8d8e7dff5dfb9a735078d7c21bef4481d29cb5348d7a6a3
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=photo+album+collage+maker+free'. This, combined with a PDF link farm heuristic, indicates a malicious intent to redirect users. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. No scripts were extracted, but the presence of multiple unknown URLs suggests a potential multi-stage attack or a phishing campaign.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.link/wix?keyword=photo+album+collage+maker+free
    • http://sunoguje.mhfirstresponse.org/uploads/1/3/2/8/132814930/123f3f15a8589a5.pdf
    • http://files.ororossodelmonferrato.com/uploads/1/3/1/4/131406182/latodapata.pdf
    • http://simirojo.greenropeitalia.org/uploads/1/3/1/0/131070161/9571196.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2761/files/tell_me_about_yourself_in_interview_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/cosmograma_bakongo.pdf
    • https://cdn.shopify.com/s/files/1/0439/3431/8760/files/19741343853.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/biwaxaturepenuxevonevuva.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/what_is_an_example_of_media_convergence.pdf
    • https://cdn.shopify.com/s/files/1/0429/1205/5463/files/62038775700.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/61856057550.pdf
    • https://cdn.shopify.com/s/files/1/0434/9824/2214/files/27445691459.pdf
    • https://cdn.shopify.com/s/files/1/0437/7939/1637/files/wules.pdf
    • https://static.usrfiles.com/ugd/46429b_9632cba0d0f9430a8e0fd9b45315303d.pdf
    • https://static.usrfiles.com/ugd/c0a468_cd3993dc07ed41fd83f170b6916496fb.pdf
    • https://static.usrfiles.com/ugd/3eb4bd_7c6146cccc4a4031a692a65095d68643.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_off00008bfa.bin
0044aa1e3f3847cecf7d16a7ae57421a4c698e23e3474c44df502b8c882cf5a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFA 5048 bytes
font_01_sfnt_off00009d30.bin
080afb68fb91b9f83f05fa9c0df42a2f881cefffdd733801ef3cb9aedb8a3b22
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D30 10360 bytes
font_02_sfnt_off0000c0a8.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xC0A8 4324 bytes