Malicious PDF — malware analysis report

Static analysis result for SHA-256 58804b91c2582559…

MALICIOUS

PDF

139.9 KB Created: 2020-08-19 09:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66155842600180c1438617525c06eed2 SHA-1: 8b19f7da9139cd3df07d63bdfbc7446382754fb0 SHA-256: 58804b91c2582559971c98b31bab2e79bfaeb7cbe5f50f1e6ef82395de18be79
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with one identified as a malicious redirector pointing to 'ttraff.ru'. This suggests a phishing or scam attempt where the user is tricked into downloading a file or visiting a malicious site. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern. No scripts were extracted from this sample.

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.ru/pify?keyword=bengali+alphabet+in+english+pdf
    • http://zezijol.wuxiangyue.com/uploads/1/3/1/0/131070043/lesoj-jararat-jixemiwasafi-fijimuzebu.pdf
    • http://files.crossfitwestgeist.com/uploads/1/3/1/3/131384374/rewafejugug.pdf
    • http://files.egtny.com/uploads/1/3/1/4/131405977/8fee5.pdf
    • http://files.ediblegroup.net/uploads/1/3/1/4/131452988/fapulotitoxufaf.pdf
    • http://files.nundahpetsitter.com/uploads/1/3/0/7/130776511/rivosawutusi.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/kipuxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8938/5890/files/oppositional_defiant_disorder_in_adults.pdf
    • https://cdn.shopify.com/s/files/1/0428/5713/6294/files/90599462368.pdf
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/690103846.pdf
    • https://cdn.shopify.com/s/files/1/0432/8135/0820/files/twitter_gif_to_phone.pdf
    • https://cdn.shopify.com/s/files/1/0432/3295/2477/files/fezuvularavev.pdf
    • https://cdn.shopify.com/s/files/1/0459/6485/3408/files/kepabibawuzapikum.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4565/files/tamil_horror_movies_2017.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012981.bin
bbbab746b071383d76341357a0b359db653851d4e4ff5f9682431d61eebae7fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12981 5396 bytes
font_01_sfnt_off00013bcb.bin
6151475bfeb89be45904469037e69d4bee45ead0e9043423067d077dc7ce526d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13BCB 60128 bytes
font_02_sfnt_off0001ba53.bin
251a2f4f4c4a76381eb99f81b8648b9923d8c9317ec4c29863ad6115ea680532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BA53 3056 bytes
font_03_sfnt_off0001c727.bin
7efea924d3d3176a21374a0247da017124abcefc03e39e0f11c52e078be63258		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C727 20352 bytes
font_04_sfnt_off000200bd.bin
55ee31f2b9c575572aca401957c5cf2f3b57b55b1dd57d1bb6d1e144d3512b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x200BD 16088 bytes
font_05_sfnt_off000215ab.bin
4c077d0f29845b2046e8e0684185c93ee80f1532764475e8ad2c9e44b4253371		 pdf-font-stream PDF embedded font (sfnt) at offset 0x215AB 2280 bytes

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