Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ca3d30fff2547b…

MALICIOUS

PDF

118.3 KB Created: 2020-08-13 20:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02f24dc58761b5f950f349ee866d21e2 SHA-1: 39cdc8085d5bdee877a4a866c8cfeb35c15d87a5 SHA-256: 88ca3d30fff2547be0988f732f93f2c7f347d3c4fedd607467d7cc0c8dd02607
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a 'human gene therapy pdf' and exhibits characteristics of an advance-fee scam lure. It also functions as a link farm, directing users to numerous external PDFs, many hosted on Shopify. The primary malicious URL identified is ttraff.com, which is flagged as a redirector.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/wb?keyword=human%20gene%20therapy%20pdf
    • http://files.faithkingwriter.com/uploads/1/3/1/8/131856186/7603818.pdf
    • http://files.raveim.org/uploads/1/3/0/7/130738850/1445e966cdf1c.pdf
    • http://files.jackienorman.com/uploads/1/3/1/8/131860787/xewaguxevaxo_xarak.pdf
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/54333155374.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdf
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/avast_license_key_2038.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/sosunutulokutowilosokubev.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/learning_german_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/14257737525.pdf
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/3_point_hitch_backhoe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/modavelex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40429789840.pdf
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/pan_african_university_scholarship_2020_19_results.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/damusinudorabok.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016cce.bin
cceb34a3e31694345f2f21fd889d7994699466282ebd439ba96e326e4beb17d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16CCE 5032 bytes
font_01_sfnt_off00017db5.bin
b2d04c42d5ec385849b1dacb3c0992c66c8b131b8719a82e588196b53b70e4f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17DB5 13316 bytes
font_02_sfnt_off0001a90b.bin
ee796b0d072c3da784915329e3d40b60a5f3ef2e5e1937d62fc4d7a384cee729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A90B 16092 bytes
font_03_sfnt_off0001bdba.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BDBA 4324 bytes

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