Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3a56d99999c4ed…

MALICIOUS

PDF

51.2 KB Created: 2020-08-03 20:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01f815f39e387943f4b5426779f680f9 SHA-1: a2f63240bad92e878f1d79269b318fe9611410ba SHA-256: ab3a56d99999c4ed74aa3f3fba0814ac65fcbca21ec598737965b2e746007d18
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=axis+asap+charges+pdf'. Additionally, it exhibits a PDF link farm pattern, with numerous links hosted on Shopify and other file-sharing domains. The presence of a visual download button lure further supports the malicious intent. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, indicating a phishing or scam attempt.

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.ru/pify?keyword=axis+asap+charges+pdf
    • http://files.lighthouseshelter.net/uploads/1/3/1/4/131453302/3700405.pdf
    • http://files.al-anonny.org/uploads/1/3/1/6/131637168/4385707.pdf
    • http://files.montaukbeachbungalow.com/uploads/1/3/0/7/130776069/10e9fe1918ba6.pdf
    • http://files.ashleybiscan.com/uploads/1/3/0/7/130776298/wopatapofevogefo.pdf
    • http://files.downhomebakehouse.com/uploads/1/3/0/7/130740257/1461688.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/dotevorofefufanadugumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/41835786027.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8213/files/40837762306.pdf
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/nepivaduterosomafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1798/files/kunovuwapapuso.pdf
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/2010_honda_crv_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/pevofa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3619/6507/files/96653280440.pdf
    • https://cdn.shopify.com/s/files/1/0432/0375/6196/files/wexikakunadiw.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_off00007547.bin
1a509aaed34b51a50d2aeb3584d7f2e1f85d21421cf651cd8c6bc1626136d6c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7547 5444 bytes
font_01_sfnt_off000087ca.bin
5333bb6d6d70cdce1429da2fd3f6aada9f3fb652509f267296795be1c4c55b3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x87CA 10276 bytes
font_02_sfnt_off0000ab0f.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB0F 16164 bytes