Malicious PDF — malware analysis report

Static analysis result for SHA-256 e367c6989a1e45c4…

MALICIOUS

PDF

44.2 KB Created: 2020-08-31 19:56:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fea84c4120bee28960f9e8424425f630 SHA-1: fc752d0e31516c6715943ea4aeb8d82b88e7c6a1 SHA-256: e367c6989a1e45c40e4d4c62be6058adac6c9f22853d021f62980fb0a82fc05a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bass+boosted+song'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body, though partially corrupted, also contains the same URL and a list of other URLs, suggesting a link farm or redirection strategy. The presence of numerous external links, many hosted on Shopify, further supports the link farm heuristic.

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/pify?keyword=bass+boosted+song
    • https://static.usrfiles.com/ugd/e4a001_e9df8f615648403f94c8ba822d91a93e.pdf
    • https://static.usrfiles.com/ugd/ec0c41_57cda199319247dab69df48d5914c137.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_769a54bea8d043cda6df1beec0d7451a.pdf
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/bavegadagetero.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/66123989876.pdf
    • https://cdn.shopify.com/s/files/1/0438/7710/5832/files/candy_crush_mod_apk_for_ios.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/futaxu.pdf
    • https://cdn.shopify.com/s/files/1/0439/5122/7048/files/virigivomimum.pdf
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/mamavurifujusog.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8156/files/73026956858.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdf
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/meningite_bacteriana_por_otite.pdf
    • https://cdn.shopify.com/s/files/1/0433/4072/6431/files/20287329176.pdf
    • https://cdn.shopify.com/s/files/1/0450/9509/2376/files/thomas_calculus_multivariable_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/nemaviduzafepij.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e2f.bin
209c12ab4721262e1a568d7a485db3edaa0c64912f3b9289db40d15dd65daa0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E2F 5052 bytes
font_01_sfnt_off00005f67.bin
db0a0ec51818ea9e05b2c25e42bc626b9842429920b12a714131cfea8eb3b6ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F67 2336 bytes
font_02_sfnt_off000069db.bin
d6ef71bbc6fcacf0761f5dc10ec45c5b08781c8a413a88b628d827ac3990903f
pdf-font-stream PDF embedded font (sfnt) at offset 0x69DB 10700 bytes
font_03_sfnt_off00008e30.bin
6b9c560c42e3b8248f6e00298a8009c649c0a0909a48cbed62773d7795dcc600
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E30 16192 bytes