Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b93eeec6c335d87…

MALICIOUS

PDF

45.3 KB Created: 2020-09-01 03:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6409d77eeb18fb1495a4fe98aa3cbe95 SHA-1: d6d64f78d36781f7721286dd4929ddb3eee2aa52 SHA-256: 1b93eeec6c335d87b15ccdd74f905948689dff3ee70215639109137880c67a07
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF contains a heuristic firing for a malicious redirector link, which points to `ttraff.com`. This URL is presented within the document body, disguised as a link to a PDF about 'paranoid personality disorders'. The file also contains a large number of embedded links to Shopify domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.

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=paranoid+personality+disorders+pdf
    • https://cdn.shopify.com/s/files/1/0432/0277/3156/files/topixivimigugene.pdf
    • https://cdn.shopify.com/s/files/1/0430/6839/1591/files/sixovesilax.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/nelosox.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/21493152401.pdf
    • https://cdn.shopify.com/s/files/1/0429/4977/1430/files/61477949177.pdf
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/32493532528.pdf
    • https://cdn.shopify.com/s/files/1/0430/4555/2290/files/xirolutakusetokarup.pdf
    • https://cdn.shopify.com/s/files/1/0440/3298/3205/files/forex_trading_hedging_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0451/7157/2885/files/astrophysics_for_people_in_a_hurry.pdf
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/dozopewure.pdf
    • https://static.usrfiles.com/ugd/d55797_8feda27476324afebec7cc60ef029832.pdf
    • https://static.usrfiles.com/ugd/8127dd_69ba56615b564e25988634b07d6dfa5a.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_633836c2c6f44da29d08d80077051097.pdf
    • https://static.usrfiles.com/ugd/b8c837_28410656406e4946852adc44fe522506.pdf
    • https://static.usrfiles.com/ugd/b8c837_21b48864f16242fd9b09db5b110c17ba.pdf
    • https://static.usrfiles.com/ugd/a1fb72_30f0b2c6a0ac41f8a9a222232398e0d5.pdf
    • https://static.usrfiles.com/ugd/286fb8_b84ffb46567c4d01813213645fe9b888.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_off00007321.bin
c5116ad36189ff837a4fa1051edcf91521d1a1d150f04ac07d73f8f0b4b1e12c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 5140 bytes
font_01_sfnt_off000084b4.bin
1373f38cb9423b71ceba892aa994f0938b9b6f1e03611e500e846ba161d98ad0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84B4 10384 bytes

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