Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0905359592c5d4c…

MALICIOUS

PDF

39.0 KB Created: 2020-09-01 00:14:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a937d70ffe6b206890093c10ff024ab SHA-1: 60a9f432d40813b52211ae55d17fe4860b47db5e SHA-256: b0905359592c5d4c2de6140db89f4a3e34ead91dbee3aceb8a6338b53a8b491e
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, identified as a PDF link farm. One of these URLs, 'https://ttraff.com/wix?keyword=queen+platform+bed+frame+with+headboard+wood', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other Shopify links indicates an attempt to obscure the malicious intent within a large volume of seemingly benign content.

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/wix?keyword=queen+platform+bed+frame+with+headboard+wood
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/above_the_rim_soundtrack_free.pdf
    • https://cdn.shopify.com/s/files/1/0459/6452/5735/files/lafunejegozego.pdf
    • https://cdn.shopify.com/s/files/1/0431/5634/0890/files/33746889557.pdf
    • https://cdn.shopify.com/s/files/1/0435/8910/7869/files/evalueserve_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/insolvency_and_bankruptcy_code_act.pdf
    • https://static.usrfiles.com/ugd/bb13a2_b80e6d918c9748eb93f4e3e947940904.pdf
    • https://static.usrfiles.com/ugd/b8c837_ac4be774ca5b438e9e2f23ee1d73a232.pdf
    • https://static.usrfiles.com/ugd/c12414_0b6c3a753cf644cba2cd8e8792e8a8ad.pdf
    • https://static.usrfiles.com/ugd/a86d68_4819c2f022bb459e8eae60aa0c9edd64.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2399/files/givosewajazopogoj.pdf
    • https://cdn.shopify.com/s/files/1/0460/1610/2559/files/five_minute_guided_meditation_for_sleep.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/53058469992.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ff2533c4c3f4d0db9f272b2c5c62050.pdf
    • https://static.usrfiles.com/ugd/784815_904558a3d09449b8979d2e39fe790dd5.pdf
    • https://static.usrfiles.com/ugd/ca300b_d2d62e0d88104061b2ff277eceb2455c.pdf
    • https://static.usrfiles.com/ugd/b8c837_94f15a7589ab442185a06ff5ac978955.pdf
    • https://static.usrfiles.com/ugd/4b874d_3a33d0036720471aa912d9ed536f7e62.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_off0000593c.bin
e64beb4f4ecbdbc57cbeb72a5ef1b57d59f2b9e2c105c25e84cf222722b15c06
pdf-font-stream PDF embedded font (sfnt) at offset 0x593C 5396 bytes
font_01_sfnt_off00006b79.bin
a06fef5a16cb6d9bed13e69004043ff70550b36e534645667294a4998f762a08
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B79 10524 bytes