Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c9edc708b3f738a…

MALICIOUS

PDF

47.5 KB Created: 2020-09-06 14:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7632ace948e5b34713e05e081c7827d5 SHA-1: 7e2236776c88246d0d19f653f9c2859df165e3d1 SHA-256: 8c9edc708b3f738a773abbe41cd7cba605a4356c57ace092a04a746fc9ed4f9c
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of embedded links, indicating a link farm strategy. The document body, though heavily obfuscated, contains text related to 'arrest reports' and a URL that appears to be a lure. The presence of a callback lure heuristic suggests a phishing or scam attempt. The primary malicious URL identified is ttraff.link, which redirects to a site related to 'marion county iowa arrest reports'. The document also contains numerous links to Shopify-hosted PDFs, likely part of a SEO poisoning or link farm tactic.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.link/wix?keyword=marion+county+iowa+arrest+reports
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/cc-_dcm-_001.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/rufavovuxekavekeva.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7345/files/akuntansi_biaya_carter_edisi_14.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/68153690950.pdf
    • https://cdn.shopify.com/s/files/1/0447/7868/4573/files/fishbone_diagram_template_in_microsoft_word.pdf
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/87582349532.pdf
    • https://cdn.shopify.com/s/files/1/0437/0753/1432/files/24177757627.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/49554427824.pdf
    • https://cdn.shopify.com/s/files/1/0430/1979/6643/files/misuman.pdf
    • https://static.usrfiles.com/ugd/bd1c09_95c76faa2b1847acb98a148dd19341b4.pdf
    • https://static.usrfiles.com/ugd/b8c837_62739d95b2f248fca9c21bdb07cb5f2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba489bf9134d4ab685139343aed42a73.pdf
    • https://static.usrfiles.com/ugd/b7ed05_9b3729d51a5443f7ab71f60ad24f8cd3.pdf
    • https://static.usrfiles.com/ugd/271e65_babd139886754c74b23a7cd249181144.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_off000062fe.bin
1fe6dad146cf5f7a2893822692a70ae94d9a3c12a9ed8a429736909c367194d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 4976 bytes
font_01_sfnt_off00007411.bin
8961b7476258205ccfb5b3480d862aad04648a30a82f01811e0fb231676bc4c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7411 15212 bytes
font_02_sfnt_off0000a311.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA311 4324 bytes