Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb776cd0b0b662a…

MALICIOUS

PDF

45.2 KB Created: 2020-08-08 13:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cddcbb0575115384538379707c0a934 SHA-1: 4e74eeeb5b7140fa8c5a392b6610add40813ef5b SHA-256: eeb776cd0b0b662a1914cdba3fecae7055e74a700f26f29d28155ac9d5fbfbd3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a lure related to job applications, but analysis reveals it is a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=cover+letter+template+for+job+application+pdf, which is flagged as a malicious redirector. The document also contains numerous other links to PDFs hosted on Shopify and other domains, likely part of a SEO poisoning or link farm strategy to distribute malware.

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/pify?keyword=cover+letter+template+for+job+application+pdf
    • http://kobejob.mitzlafftrading.com/uploads/1/3/1/6/131606069/kokijezu.pdf
    • http://files.ausdart.com/uploads/1/3/1/4/131453065/duximivimom_xupuxifi_boredit.pdf
    • http://files.centrobix.net/uploads/1/3/2/6/132683289/zelowur.pdf
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/pexulep.pdf
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/vedilofaluzisoduguf.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/lorofovigapilifisogegis.pdf
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/gejavukilutexodutijobopo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/bemakezenulumirasamawur.pdf
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/duck_migration_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/el_camino_de_la_kabbalah.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4455/files/assistant_accountant_resume.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/xaero_s_minimap_1._7._10.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0810/files/10th_class_biology_book_urdu_medium.pdf
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/javanigumusabin.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7032/files/zatuguzoxagutewixemubip.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/16083150327.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_off0000655e.bin
7ec711f9bf166d89426ac13a3e37f0d2ae2a2f78bac7d0c456f89121fb03173a
pdf-font-stream PDF embedded font (sfnt) at offset 0x655E 5208 bytes
font_01_sfnt_off00007703.bin
b6f2548674f5749a522718f0829758dd9f896d88e9878e2206d50434aea3c398
pdf-font-stream PDF embedded font (sfnt) at offset 0x7703 10128 bytes
font_02_sfnt_off00009998.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9998 4324 bytes