PDF malware analysis — malicious · 22a8399208f46aa6

MALICIOUS

PDF

40.0 KB Created: 2020-09-02 00:59:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: abb08982c4663c7883222760f8fd9aec SHA-1: 4c08843478b1ab218c18d1dd3e23a47877df24b8 SHA-256: 22a8399208f46aa6467a1accb27342eca96662fea9941f3f731fc6ed86f0b507

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=multiplying+decimal+word+problems+worksheet+grade+6'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The presence of a PDF link farm heuristic further suggests a tactic to distribute malicious content. No scripts were extracted, but the overall structure and the malicious URL strongly suggest a phishing or redirection attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=multiplying+decimal+word+problems+worksheet+grade+6
- https://cdn.shopify.com/s/files/1/0432/1624/0807/files/jarinavadafexekak.pdf
- https://cdn.shopify.com/s/files/1/0439/7573/7502/files/drivers_test_study_guide_nj.pdf
- https://cdn.shopify.com/s/files/1/0429/6635/2025/files/62510162442.pdf
- https://cdn.shopify.com/s/files/1/0428/1463/6198/files/dti_business_name_registration_form.pdf
- https://cdn.shopify.com/s/files/1/0432/3239/5426/files/zexijozuxote.pdf
- https://cdn.shopify.com/s/files/1/0430/3545/9738/files/whatsapp_for_blackberry_z10_2019.pdf
- https://cdn.shopify.com/s/files/1/0440/5598/6326/files/jangly_man_story.pdf
- https://cdn.shopify.com/s/files/1/0436/2862/6080/files/datulizuwapejagasejoj.pdf
- https://cdn.shopify.com/s/files/1/0434/2182/7222/files/kevosimuje.pdf
- https://static.usrfiles.com/ugd/1c8c6c_d3285fff725d49f58e486971c0645823.pdf
- https://static.usrfiles.com/ugd/b8c837_ef2b933a735040d496d20ab50877c2cd.pdf
- https://static.usrfiles.com/ugd/6e3131_dd178dcb68cc44e8b6a978e3c3524c3e.pdf
- https://static.usrfiles.com/ugd/cac9e4_ac0c26e2a2df4bf7b2a157c23ff2313f.pdf
- https://static.usrfiles.com/ugd/9eb187_1a170cac23a94ea9b3f254285dbe7b30.pdf
- https://static.usrfiles.com/ugd/5926b4_c96c553b1b5f466faf1e8c251283ea57.pdf
- https://static.usrfiles.com/ugd/599f1c_f1949836118e422c81899aa547aa8862.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00005949.bin` `ae896456879f58ba5cc9183c94071f88503bdebfc01ab5d14251ed310ebd450b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5949	6044 bytes
`font_01_sfnt_off00006dcd.bin` `67a4297059873aad5091519d9ffdac40b9df74ccc0985ffa4b42018725fa9e3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DCD	10260 bytes

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