Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f936d53dc0787e…

MALICIOUS

PDF

34.9 KB Created: 2020-07-31 20:12:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d310ed183c9ce451ad2fb769d494fb66 SHA-1: 301b9a3cfd4d3e6acae7504477965ff789c9b4e2 SHA-256: 97f936d53dc0787eb35b7ef1fa5d9a3c105d831bc1090a9898fa2d78bc175a4b
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=y+to+mp3'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body contains text related to 'Y to mp3' and a call-to-action phrase, suggesting a lure for users to click the malicious link, likely to download unwanted software or be redirected to phishing content.

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=y+to+mp3
    • http://files.tennesseefccla.org/uploads/1/3/2/7/132712096/8882839.pdf
    • http://files.stephaniepercydoula.com/uploads/1/3/0/7/130775635/1474063.pdf
    • http://files.mybaxterfamily.com/uploads/1/3/1/1/131164375/5d5d353f9.pdf
    • http://files.catchamomentphotos.com/uploads/1/3/1/4/131453333/zapudiwazofefewogiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/26714933586.pdf
    • https://cdn.shopify.com/s/files/1/0429/4495/4527/files/zimakowid.pdf
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/soferawalagonosi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/95282273861.pdf
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/52041204865.pdf
    • https://cdn.shopify.com/s/files/1/0438/8611/7019/files/josuninomub.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/vokisamu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9233/7059/files/buburaxajovowixebodut.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/rorexewu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9670/2104/files/61992495586.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/86546869056.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_off00004d15.bin
532ba5e5340fb4efacf358dd42563d6f0bd2052cfbd1786a2139552c89672a63
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D15 4572 bytes
font_01_sfnt_off00005ca2.bin
4f8b26a58b25e5f6c847f8189d7be344cbb7470132fb07ca7d9e6ed8a3f47bec
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA2 10076 bytes