Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e8b340f9eba5fa…

MALICIOUS

PDF

43.1 KB Created: 2020-08-18 21:40:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fdd71390241da2276d7e45fb1741450 SHA-1: 8c60d94c5c5b077ea710089da69213dc3b5ff660 SHA-256: b2e8b340f9eba5fa57572b5a723ac86e60c82fd57727ae7991199b2d7d87c3bc
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Facebook cover photo template psd free' and the malicious URL. This suggests a social engineering lure to redirect users to potentially malicious content. The file also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm or SEO poisoning technique.

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/pify?keyword=facebook+cover+photo+template+psd+free
    • http://files.stmaryselmbridge.org/uploads/1/3/1/3/131380985/c172952798f6ec.pdf
    • http://files.agefriendlyteaneck.org/uploads/1/3/0/7/130740490/2949fb956b6.pdf
    • http://files.keyahealth.com/uploads/1/3/0/8/130814342/mupupila.pdf
    • http://files.g12generation.com/uploads/1/3/0/7/130739340/5c307046ed40af3.pdf
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/free_life_selector.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/44518088499.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/dadebozodebisagovir.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/92275390931.pdf
    • https://cdn.shopify.com/s/files/1/0430/8697/1033/files/java_core_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdf
    • https://cdn.shopify.com/s/files/1/0432/8400/5032/files/83840425049.pdf
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/my_chemical_romance_albums_zip.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1702/files/mapa_geologico_de_el_salvador.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_off000055eb.bin
ba9fd0a4fcc52d1c4a679a5670f22e900c9d1220b274b08d925226cc37ab4170		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EB 5248 bytes
font_01_sfnt_off000067c1.bin
2c28fe30331a50c8b75bd9f17994676351f4d2b01fcebf5731514d47a95f51cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C1 13204 bytes
font_02_sfnt_off00009169.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9169 4324 bytes

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