Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62214801c52763c…

MALICIOUS

PDF

63.0 KB Created: 2020-08-05 15:43:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fa481f087eaa87d41af74ca19d5c8cc SHA-1: 0cfefa471250716a3e7c3aabc8b22fb7a1b13b5b SHA-256: f62214801c52763cd8c0fe5f84fa32cfbdd9463708d8dae77e4063ebf9b51714
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing for a PDF link farm. One of the primary links directs to a known malicious redirector, ttraff.com, which is further parameterized with search terms related to 'drawboard pdf surface pro 4'. This suggests a phishing or scam attempt to lure users to malicious sites. While many links point to Shopify, one specific link to cdn.shopify.com is also flagged as a potential entry point.

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/wb?keyword=drawboard%20pdf%20surface%20pro%204
    • http://files.sacredheartemmett.com/uploads/1/3/1/3/131398286/39ba50c.pdf
    • http://files.mihaistahiephotography.com/uploads/1/3/0/7/130775850/5747275.pdf
    • http://files.briannedempsey.ca/uploads/1/3/1/6/131637218/nedezepebokuxo.pdf
    • http://files.empocus.ca/uploads/1/3/1/8/131858287/jivejopazas_tetariwubexiji_nuluwipal.pdf
    • https://cdn.shopify.com/s/files/1/0435/5306/3063/files/xevew.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/tipukikubuwobepibozalu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/39717419084.pdf
    • https://cdn.shopify.com/s/files/1/0432/1119/4525/files/filidezumeziduliruluxer.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/kenamukotiwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/65877787972.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/vovagexi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3124/8542/files/zixanarizegoxizapi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5321/2057/files/6790570094.pdf
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/65737041762.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/tubizekot.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5400/files/talidimakujonexixolo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/20939924845.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_off0000ac76.bin
89277057c0715823190e1b644d8ca282eb83299ba3567b77d595dcd6980cfcdb
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC76 3232 bytes
font_01_sfnt_off0000b80f.bin
7a69e8787440693579bb7866cd16e0d91b4fe2d4138e8eb9c793cfcf779d6a35
pdf-font-stream PDF embedded font (sfnt) at offset 0xB80F 5436 bytes
font_02_sfnt_off0000cab7.bin
25637b3aef7442b63b3362fcd99263e46d712103829d0c738e9c157397271a84
pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB7 10416 bytes