Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf67b33f7f601494…

MALICIOUS

PDF

41.9 KB Created: 2020-09-21 02:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83622f40a7990e9af09816a1c0b83686 SHA-1: 692d42429c3d60df0f9dc326fb7b12452bf10d27 SHA-256: bf67b33f7f6014940c4a9df8472729c9720f170794babfcac0b2ac14627551dd
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to create a link farm or distribute content through numerous URLs. The primary malicious URL identified is https://ttraff.me/wix?keyword=chris+harrington+utah, which is likely used for phishing or malware delivery.

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.me/wix?keyword=chris+harrington+utah
    • https://575c98f3-1fc2-496f-989c-33918ae4bd1f.filesusr.com/ugd/592671_3018ef31b5f349399015c27f18c53f77.pdf?index=true
    • https://d52ef63a-f403-4eb8-a25d-f23d6c7471d9.filesusr.com/ugd/55f640_20708231cf7840b1a4d5dc1e1f516fe4.pdf?index=true
    • https://d8a52738-f46b-4b55-acd1-43a61c070f9f.filesusr.com/ugd/93971e_67deb365f2984b5f8711dac204c3ed1e.pdf?index=true
    • https://87005944-cf94-4061-b656-a146f3f049d0.filesusr.com/ugd/2f7489_3f4ae4e41c7f419ebd562ad3092116fd.pdf?index=true
    • https://13a0c015-dc1a-4501-97b3-3de8288219d9.filesusr.com/ugd/80c1db_0f11a4e3cc454203bf0f06a0347ef01f.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/1851/6637/files/napuwedusazekereveluzin.pdf
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/alter_ego_plus_3_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/8336/6551/files/86758636349.pdf
    • https://cdn.shopify.com/s/files/1/0449/4472/0040/files/elapsed_time_word_problems_worksheets_grade_2.pdf
    • https://cdn.shopify.com/s/files/1/0440/2446/3525/files/formal_letter_asking_for_a_raise.pdf
    • https://cdn.shopify.com/s/files/1/0433/8732/2522/files/aplikasi_bluetooth_untuk_pc_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/boletim_de_ocorrencia_policia_civil.pdf
    • https://12c6376f-95f8-454d-9832-7d0361877405.filesusr.com/ugd/a37a2e_b9a1d21ea02940b6a139ae4d775692db.pdf?index=true
    • https://f1636e10-045e-4dd3-b92d-3f069f8aeb91.filesusr.com/ugd/7ef0dc_0bd3d9ba8d064b969be27001df76fdb1.pdf?index=true
    • https://93964a7b-b157-4fad-9b31-5b8003a404b1.filesusr.com/ugd/9d66c7_0bbe73e6cff94026bc6dc315e9f3bf72.pdf?index=true
    • https://15484a41-517e-485f-aafb-8bf82d96b02f.filesusr.com/ugd/c162b3_1189bff149f14f0b8f4e8d6e138b8aba.pdf?index=true
    • 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_off000065e8.bin
65831e9ed44f4632190b72bc3af5ac1134e27156b100ff20020ddf595e4ad1c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x65E8 4820 bytes
font_01_sfnt_off00007641.bin
b95e0921bd70f715ad9b61bc63752645c923da0987814ec6549887ecca72f63a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7641 10720 bytes