Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f23667e53342f29…

MALICIOUS

PDF

42.3 KB Created: 2020-09-17 08:31:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95b61bdda406db67dc7f81e2ec03e99e SHA-1: 2be83fc8167dbde62e9005c6e894ff9d3c1762e2 SHA-256: 3f23667e53342f2930629cf0019a6d7c8f17092c6b428055dad79b53348f81e1
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=chamberlain+clicker+universal+garage+door+remote+manual'. This URL is presented within the document body, suggesting a lure to trick users into clicking it. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which are to benign-looking PDF files hosted on file-sharing services, likely for SEO manipulation or to obscure the malicious redirector.

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.me/wix?keyword=chamberlain+clicker+universal+garage+door+remote+manual
    • http://dogiw.wildwoodhome.shop/uploads/1/3/0/8/130873851/fusaw_dukaropo.pdf
    • http://sexak.whistlerpizza.ca/uploads/1/3/1/3/131379730/3f2ecb045c041.pdf
    • http://penuk.pt-stepilotto.com/uploads/1/3/1/4/131438474/cb389b457355.pdf
    • http://files.crazycanadia.com/uploads/1/3/1/0/131070762/75dcbec6db17.pdf
    • https://ed7f3856-a9be-48d2-bc32-9821abfd9465.filesusr.com/ugd/8a4248_817e4171a4ee447cab6e8e5ec2b9eeec.pdf?index=true
    • https://b027668f-d656-4907-80e1-f3d4c1027bdf.filesusr.com/ugd/bfd504_db1db11097f5461bb17fa50cf45330ae.pdf?index=true
    • https://76e9d4bf-2bb2-406b-8392-7cd3aa0ec3c1.filesusr.com/ugd/9f06f8_7596a0ee48fb47a0a0fc175dce45fba7.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/3167/3502/files/90978548486.pdf
    • https://cdn.shopify.com/s/files/1/0436/9101/6347/files/religion_de_los_zapotecos.pdf
    • https://cdn.shopify.com/s/files/1/0432/3845/7501/files/nasa_artemis_program.pdf
    • https://cdn.shopify.com/s/files/1/0429/7539/5993/files/mexazabize.pdf
    • https://cdn.shopify.com/s/files/1/0435/1852/5599/files/73944186894.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/
    • https://cdn.shopify.com/s/files/1/0436/9101/6347/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006265.bin
95122253b53915363ed8499acbf5a3f47cdc3396a6a702c9acdb569492deb8f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6265 5520 bytes
font_01_sfnt_off000074f7.bin
34afa50fe31822a7b6a1db7852a1ed356244b52bbf2d07637195e82f4b610df5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F7 10944 bytes

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