Malicious PDF — malware analysis report

Static analysis result for SHA-256 3217c0d80b5d5fa0…

MALICIOUS

PDF

35.2 KB Created: 2020-08-31 13:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43c5036373d83ee3261606122f96308e SHA-1: e87c80b6f12047f1baa21ba0ae3781b33476dc9d SHA-256: 3217c0d80b5d5fa09a93663987e976df30675b95c5aadfc1062fc970b65bb6a7
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix'. This link is presented within the document body, disguised as a link to a Cambridge English exam preparation PDF. The file also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to benign Shopify URLs, but the primary malicious link is the clear indicator of compromise.

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.club/wix?keyword=cambridge+english+first+1+for+revised+exam+from+2015+pdf
    • https://cdn.shopify.com/s/files/1/0435/5919/0689/files/gazusupu.pdf
    • https://cdn.shopify.com/s/files/1/0446/9525/7244/files/75622952469.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/comptia_network_certification_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/average_speed_problems_worksheet_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/magic_tree_house_dinosaurs_before_da.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_b2ece3ee58c54eb2a19cb9a51c080653.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef9c58fd780d47ad954c7516dc40384f.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d69e7d67fab432a97d0fad4414a40cc.pdf
    • https://static.usrfiles.com/ugd/529dbf_46091ca667d044d5a42e52a5a5a1ce41.pdf
    • https://static.usrfiles.com/ugd/b4a829_28fbe5b4c5d4455d95816677f6e45c3b.pdf
    • https://cdn.shopify.com/s/files/1/0434/5462/7993/files/encyclopedia_britannica_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/8066/3715/files/lady_gaga_bradley_cooper_oscars_2019_performance.pdf
    • https://static.usrfiles.com/ugd/b8c837_475ea5f403834e1c956264d8c682346e.pdf
    • https://static.usrfiles.com/ugd/b8c837_680cec348eef439dabd0a506550f8eb2.pdf
    • https://static.usrfiles.com/ugd/89c6ad_5bec1064e11840b798873c10795d3735.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_off00004991.bin
f7c8fe20c8f4e31dc98412b471ba63d8ce6a6773933baef4022569302a95cbc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4991 6080 bytes
font_01_sfnt_off00005e16.bin
db2feca0d7dad67ddc1c070b04437a5bc0bf3d02850d773500afaa8b1652d350		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E16 9820 bytes

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