Malicious PDF — malware analysis report

Static analysis result for SHA-256 376e246aab9aff4c…

MALICIOUS

PDF

35.7 KB Created: 2020-08-31 21:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a1fd54303887b0f1dda7a58049b5134 SHA-1: f92262b011098d9ecc43008320347d1c51e241c6 SHA-256: 376e246aab9aff4ccdfc262dc75ceac288aeb3aeaf9b7b356aa0829bce854c59
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. This redirector is likely used to obscure the final destination, which could be a phishing page or a site distributing malware. The presence of a large number of external PDF links suggests a link farm, potentially for SEO manipulation or to host further malicious content.

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.cc/wix?keyword=anime+arcana+famiglia+ova+sub+indo
    • https://cdn.shopify.com/s/files/1/0430/8716/7641/files/66740669887.pdf
    • https://cdn.shopify.com/s/files/1/0428/4317/7126/files/avg_antivirus_free_for_android_tablet.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/lubusopijakalixeveg.pdf
    • https://cdn.shopify.com/s/files/1/0435/1901/7124/files/22865245249.pdf
    • https://cdn.shopify.com/s/files/1/0461/7099/6889/files/administrative_law_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/dowotaxaraz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/dental_cementum.pdf
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/fire_emblem_6_rom.pdf
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/jogabifowuzavedisibiti.pdf
    • https://static.usrfiles.com/ugd/b8c837_5abee67d93264a0a8fa8ec8f88a3df11.pdf
    • https://static.usrfiles.com/ugd/b8c837_6058219135d1484896c822688aac2bcc.pdf
    • https://static.usrfiles.com/ugd/963627_b2e0d3387c434e68bf96e145b09a7397.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd4.bin
0cdc1378dbe15f0e068b5361ca69242e0ec87d64aab30e95160fef092eac5c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD4 5528 bytes
font_01_sfnt_off00006094.bin
ec21b10338c3e14eebffd8139a0a80ad9df94984c8137e31ae2d1139ca057e95
pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 9812 bytes