Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d239a3e87e66ab…

MALICIOUS

PDF

33.4 KB Created: 2020-08-18 20:09:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1a28455c812ac2b93bc37d78c44d5e0 SHA-1: bb9a7697f16b07d9b5cf7bc523baea16140c7f05 SHA-256: 32d239a3e87e66abaa8142f63914ecd3fc4c3170ccefeb2d45323fe2d64dd0d7
130 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body includes a call-to-action phrase, suggesting the user is meant to click the embedded link. The primary malicious URL is https://ttraff.com/pify?keyword=khatu+shyam+bhajan+ringtone+free, which likely leads to further malicious content. No scripts were extracted from this sample.

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=khatu+shyam+bhajan+ringtone+free
    • http://files.lomtheater.org/uploads/1/3/0/8/130814235/80b1236.pdf
    • http://sazawutef.djsfitnessevolution.com/uploads/1/3/0/7/130775971/popuzigoxen.pdf
    • http://wenuvinuf.jameslroberts.com/uploads/1/3/0/8/130813604/xuxaladaxegak.pdf
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/76900672844.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/giwom.pdf
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/joxiregafabezonigovezasup.pdf
    • https://cdn.shopify.com/s/files/1/0437/5815/7982/files/tifenad.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/42430139409.pdf
    • https://cdn.shopify.com/s/files/1/0435/6718/6079/files/top_reader_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4656/files/puxidu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/nomisalegu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/aha_instructor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0314/files/60800012387.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/girl_guides_uk_promise_and_law.pdf
    • https://cdn.shopify.com/s/files/1/0432/5736/4638/files/64383940607.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_off00004636.bin
f051e5b63c6db9e218c0f486a3c79792505ff38147f5b1834d4d549a728f7ecc
pdf-font-stream PDF embedded font (sfnt) at offset 0x4636 5436 bytes
font_01_sfnt_off000058a5.bin
b57cdab4d3d5e7a5b70761e898c68721d76ffece4b489e7987acf275f540609f
pdf-font-stream PDF embedded font (sfnt) at offset 0x58A5 9344 bytes