Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f446213ccced24…

MALICIOUS

PDF

45.6 KB Created: 2020-08-13 21:36:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3768c6a3ef644cc77dca44f6785ace7 SHA-1: b770d6a3675185f4a7e7dc7df512eabf53a1bbb7 SHA-256: d0f446213ccced24eac383ca72cffd2ad82b8f9078dc9ac81ab65cf10652557e
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bully+scholarship+edition++compressed'. Additionally, it exhibits a link farm pattern with numerous embedded URLs, many hosted on Shopify. The document also contains urgency lures and mentions password-protected archives, suggesting a multi-stage attack designed to bypass security controls. No scripts were extracted, limiting the ability to determine the exact payload or persistence mechanisms.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=bully+scholarship+edition++compressed
    • http://files.homeinspect.nz/uploads/1/3/1/6/131606630/fonutegogujulilasu.pdf
    • http://files.ccmein.org/uploads/1/3/1/6/131607063/pofekanofafozejubase.pdf
    • http://files.brigidvidler.com/uploads/1/3/1/4/131408738/8225.pdf
    • http://files.darranparkprimary.com/uploads/1/3/1/4/131437765/3910964.pdf
    • http://files.ohsosweetoccasions.com/uploads/1/3/0/7/130775373/4921876.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8136/files/kasoxotib.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/savisalitexutujodim.pdf
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/54383715566.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/64157293831.pdf
    • https://cdn.shopify.com/s/files/1/0432/6821/0852/files/list_of_engineering_colleges_in_bangalore_with_address.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mituvazejuremoposanizama.pdf
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/fibalizekemafim.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/dovidez.pdf
    • https://cdn.shopify.com/s/files/1/0439/0833/3736/files/93193655242.pdf
    • https://cdn.shopify.com/s/files/1/0433/3223/9528/files/javascript_reverse_string.pdf
    • https://cdn.shopify.com/s/files/1/0450/7149/9416/files/38939907511.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/26679065097.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006468.bin
297b1f0db013466b68db5e5dcbefacc5dc1578057f0794fcc5e39d88ebde38a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6468 5344 bytes
font_01_sfnt_off00007663.bin
736400f9fe7be0a7a200f9aa2a4fd4698fbf897fb3493bcf3395b42b6f69a3c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7663 10820 bytes
font_02_sfnt_off00009b1e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1E 4324 bytes

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