Malicious PDF — malware analysis report

Static analysis result for SHA-256 df244f1fafabc06e…

MALICIOUS

PDF

57.3 KB Created: 2020-07-31 10:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a6b63413b272973807e4ac51d914d1e SHA-1: ee776487c20e45f6293dd186070f16fca7fb60a9 SHA-256: df244f1fafabc06e0f7298dda94b7cb98de926dd394bd85c24ec7c8b66cdf763
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Canara bank pgdbf notification 2020 pdf', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to distribute further malicious content or for SEO poisoning.

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=canara+bank+pgdbf+notification+2020+pdf
    • http://files.thejessrose.com/uploads/1/3/1/1/131164311/14664ccc61b.pdf
    • http://files.rumonek.com/uploads/1/3/1/4/131438019/riliponamuger_jalekamanuvaj_jivexixa_jubiwi.pdf
    • http://files.galmeychurch.org/uploads/1/3/1/4/131438419/wemesenij-ralevozad-jemobawepelev.pdf
    • http://files.rg-si.com/uploads/1/3/0/8/130874613/d08d6055bc214c.pdf
    • http://files.galmeychurch.or
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/fatupajoduwonuluvuraniw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84511803825.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/gabevijatevakorasu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/zipuguborapatomer.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/jilamugal.pdf
    • https://cdn.shopify.com/s/files/1/0434/3899/7669/files/57238408047.pdf
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/dinalotowuri.pdf
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/13755007732.pdf
    • https://cdn.shopify.com/s/files/1/0434/0491/8941/files/gotokutudexefij.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/46114709243.pdf
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/wisuxavekativeselun.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/fazotowizafesovas.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/46283468649.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_off00007805.bin
855123280653ebd81e277c7f1c4183930a67dd3d8e11ac2a4c7b50d8e4a68eb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7805 5284 bytes
font_01_sfnt_off00008a06.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A06 3720 bytes
font_02_sfnt_off00009569.bin
0a81a3265c9f184fcf263cb811f0d56787d64558abad8407bf1063656718b7cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9569 10288 bytes
font_03_sfnt_off0000b88d.bin
b71d08155e353a11353f9705e0d80a01c4c64d48c4a6b10645942a9cbdf11b78		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB88D 9556 bytes

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