Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fb0f22518e0c7bc…

MALICIOUS

PDF

46.4 KB Created: 2020-08-24 12:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abedd6c26c64f7a4e2482e55528f41d3 SHA-1: 3f525b443d49f0cedc3412ef9e44de857791d41f SHA-256: 7fb0f22518e0c7bcbd6a08057344d168ab43d6f734a4f64e2fa9764a1f6b98b3
168 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead the user to a harmful site. The presence of a download button lure and password instructions suggests a social engineering tactic to bypass security measures. The primary malicious URL identified is https://ttraff.com/pify?keyword=anime+bakuman+live+action+sub+indo.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=anime+bakuman+live+action+sub+indo
    • http://files.snowformatics.com/uploads/1/3/1/4/131455636/47d6e.pdf
    • http://files.sabrinamichellehomes.com/uploads/1/3/0/7/130776449/xiwij-folegajubib.pdf
    • https://cdn.shopify.com/s/files/1/0448/2118/4674/files/enlaces_interatomicos_e_intermoleculares.pdf
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/duchess_of_malfi_critical_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/mufiwinufuwufozepegufabum.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/bni_logo_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/dekupalexataruzerutom.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4637/files/93309088413.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/tank_trouble_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/momozugujukudogixibur.pdf
    • https://cdn.shopify.com/s/files/1/0435/3366/4408/files/19035320145.pdf
    • https://cdn.shopify.com/s/files/1/0437/1188/9573/files/nonutoborul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ddd.bin
32de309e5b9edd3722e44bf89b4f88b92500d84d37b5b119a7df39944571f105
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDD 3528 bytes
font_01_sfnt_off00006a66.bin
8f8bf4bb04d3aa6f783da0e464fc1dd8c944c98c8addde2abd5c9ce8a63c6195
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A66 5124 bytes
font_02_sfnt_off00007bb1.bin
0a0f0fc2a98c9c118f395459174304988ccc113b754e031c20c3ccfa6035a620
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 10128 bytes
font_03_sfnt_off00009e7d.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E7D 4324 bytes