Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb008e82c40e289b…

MALICIOUS

PDF

58.9 KB Created: 2020-08-22 23:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c9098debb5164d450410eb82b10fd03 SHA-1: 70048302c1876caf091d4627b5119819bf39ce15 SHA-256: cb008e82c40e289bcc92749ac44dacd257a3c681b9f6d437f7eb74509a28551e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector identified by heuristics. This suggests the document is designed to lure users into clicking malicious links, likely leading to further compromise.

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=superhit+krishna+bhajan++mp4
    • http://tipexare.kleinsentertainment.com/uploads/1/3/0/8/130874493/muvodigoxabebot.pdf
    • http://jediv.rewoca.org/uploads/1/3/1/4/131407089/6824385.pdf
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.pdf
    • http://files.aisledoweddingservices.com/uploads/1/3/1/4/131453132/2545816.pdf
    • http://zirudilo.katongfamilyclinic.com/uploads/1/3/1/3/131379956/tovower.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9575/files/87584948770.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/asche_abar_shabor_movie_480p.pdf
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/acidic_foods_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/62680232532.pdf
    • https://cdn.shopify.com/s/files/1/0435/9343/3246/files/fukaxefisokosuzazitiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/2503/1587/files/5035591157.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizazuvolabemonixodokij.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/42216180900.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/kelinezitepifosi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/67678020290.pdf
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/61331131739.pdf
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/bojizigavadi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/45878954257.pdf
    • https://cdn.shopify.com/s/files/1/0431/5181/8903/files/instrumentation_amplifier_using_op_amp.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/goxaxokowititadafunumep.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/
    • https://cdn.shopify.com/s/files/1/043

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006669.bin
107233668d7839d6917431cfa1b3f0a3119693dea6703bf80de2435f03a3ddd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6669 5500 bytes
font_01_sfnt_off000078f2.bin
049e28e4960c2355e569eb67f6c0e56972f87a9bab0081ed62bde637c9c88f98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F2 4784 bytes
font_02_sfnt_off00008841.bin
77155258be29461fc12bbd5f9bfc325c7545637d360bfa731b716bdb840d945b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8841 10340 bytes
font_03_sfnt_off0000abe5.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABE5 16092 bytes
font_04_sfnt_off0000c0e8.bin
974fee9a1aadf1f48810b8f580db0b36a81fd9214e4e5cc57f47bf87937056fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E8 8424 bytes

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