Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d2fc1bf9a134a8…

MALICIOUS

PDF

52.5 KB Created: 2020-09-02 03:32:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 340c376ca948aba4034fdd073abe4d81 SHA-1: 9fc585a856537e2e649d8cfa00342afae5c24df8 SHA-256: 00d2fc1bf9a134a871b7cf44fbbb7b2a4c6d4429a1132ef9bb69b1258afdad27
154 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that is disguised as a download for 'bluetooth for windows 8 hp'. This link leads to the URL https://ttraff.cc/wix?keyword=bluetooth++for+windows+8+hp, which is flagged as malicious. The document also exhibits characteristics of a link farm, suggesting an attempt to manipulate search engine results or distribute traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bluetooth++for+windows+8+hp
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_63f9f500c42244b78287e1844a08accb.pdf
    • https://static.usrfiles.com/ugd/538d67_b7128b4fa60a48baa11cae911d239845.pdf
    • https://static.usrfiles.com/ugd/6da380_28a4be1f7b6141eeb363b97b315f6360.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_abea464531df45f39ee2c1d957957c39.pdf
    • https://static.usrfiles.com/ugd/de3d83_5bb62c410d8f4a55a93153c1ad982f7e.pdf
    • https://static.usrfiles.com/ugd/89363e_f3e66da6406949438a863a0e6187dfc3.pdf
    • https://static.usrfiles.com/ugd/41a0b6_7cf70137e2144142b2ac17f9bd592c86.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_f68640076c85428c8e143e721bce768d.pdf
    • https://static.usrfiles.com/ugd/bdeb4c_bc307f272a7244eda31c1e9cad64f059.pdf
    • https://cdn.shopify.com/s/files/1/0433/8611/0110/files/frozen_fever_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0434/4440/4374/files/yoga_for_back_pain_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/wumufavilofigijufod.pdf
    • https://cdn.shopify.com/s/files/1/0461/3662/3272/files/44845545604.pdf
    • https://cdn.shopify.com/s/files/1/0433/5563/5880/files/5e_acquisitions_incorporated_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/3885/1751/files/bonegaxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/0795/9452/files/44583586198.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000767a.bin
598c01db32d41dd0df046d7a57190102e714b9c76281a08b0b73bf7a4ce1bd29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x767A 5252 bytes
font_01_sfnt_off0000886e.bin
9a0c35bfe406f892abecd400575d756eab9393e86303fb7dec7992261122156b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x886E 10156 bytes
font_02_sfnt_off0000ab5b.bin
f4f3ad0cfe514395cdab43cdd5e456578a0fef729e6a727be13f0bf6ffb9bd56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB5B 17184 bytes

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