Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dde3e00b968ca89…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 05:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dad3e12dfb02faa2cc88d6c4cf3d1b7 SHA-1: ec0e0eefd79fbda9a92ca2748bc15c22b681ca75 SHA-256: 1dde3e00b968ca89029089ff76204984d9251da0736a2a06b269c61801e37c96
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the malicious URL, suggesting an attempt to lure the user to a compromised site. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Heuristics 3

  • 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.
  • 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=e+teamz+com
    • http://files.davidvitt.com/uploads/1/3/1/4/131408798/8291641.pdf
    • http://files.gabrielsartkids.com/uploads/1/3/1/3/131379290/1638655.pdf
    • http://files.crossrecord.com/uploads/1/3/0/7/130775635/gikename-benuxona.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/25527495312.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/zitina.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/88180118107.pdf
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/443886658.pdf
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/94345502525.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7911/files/44086165019.pdf
    • https://cdn.shopify.com/s/files/1/0431/9009/1940/files/how_to_rollback_commit_gitlab.pdf
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/46389031191.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/98788766067.pdf
    • https://cdn.shopify.com/s/files/1/0435/9369/5391/files/liverirerikimajokimoni.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_off0000656d.bin
b930895040d09043d36e131ed1619ccbe2c4153a0d8d3f218d041ab0adbee448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x656D 4648 bytes
font_01_sfnt_off00007534.bin
e9891bedf7a0f693b82a5556f133bef0f39ac7a83dccdeb5b63a78b2c44da665		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7534 10192 bytes

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