Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc491d3ae98d106f…

MALICIOUS

PDF

74.0 KB Created: 2020-08-30 08:53:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac6332ff787f9ff1f9a4262e4c335c47 SHA-1: 22077c629ad0785ab23531b5077260665133f488 SHA-256: cc491d3ae98d106f1e0e65e53195266f200a2865f9339a612fe913b91c81b400
168 Risk Score

Malware Insights

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

The PDF file contains a lure for an advance-fee scam, specifically referencing academic materials like 'Microeconomics 5th edition besanko s' and a 'Download Now' button. It embeds multiple links, with one critical heuristic identifying a redirector to 'https://ttraff.cc/wix?keyword=microeconomics+5th+edition+besanko+s'. This redirector is likely used to deliver a malicious payload or lead the user to a phishing site. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm designed to improve SEO for malicious content.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=microeconomics+5th+edition+besanko+s
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/lavubinuroxozilavakax.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/71546357056.pdf
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/sobotta_atlas_d_anatomie_humaine.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/autohotkey_script_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/1047161113.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6561/files/tutiwomokivawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/22750272474.pdf
    • https://cdn.shopify.com/s/files/1/0436/1450/3075/files/xisuxituwanefilezapuwog.pdf
    • https://static.usrfiles.com/ugd/4c1554_691c0701506b46368ca98b8c0320805b.pdf
    • https://static.usrfiles.com/ugd/cec570_c6cdfe773182431da1fef807b961f98f.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/79441982523.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9459/files/phonegap_mobile_application_development_cookbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/anthropology_ugc_net_study_material.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/gemovupusojijo.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_off0000c410.bin
e02f34da4a7332d34b22a678e5f09e1ad0dc201d76994dbeb4f07ebac1a2a7b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC410 5480 bytes
font_01_sfnt_off0000d68a.bin
201af82c2bdc52126f32c6915642891146763bb001f79decc01666ba1993c87a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD68A 14912 bytes
font_02_sfnt_off00010521.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10521 16204 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.