Malicious PDF — malware analysis report

Static analysis result for SHA-256 4710421bc094259b…

MALICIOUS

PDF

41.3 KB Created: 2020-08-18 14:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c3b03dbef0eaa0b1f92d42762c4dca0 SHA-1: bd741d67195ebf48b9c562059e884c3582be2cbc SHA-256: 4710421bc094259beb772845d815b5cc429af10f051403516667cced562e949c
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and embedded URLs suggest a lure related to downloading software, specifically 'Vidmate apk terbaru for pc'. The presence of numerous external PDF links also indicates a link farm strategy. The primary IOC is the malicious redirector URL.

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=vidmate+apk+terbaru+for+pc
    • http://files.centre5pinbowl.ca/uploads/1/3/1/3/131398583/tuwawolomegi.pdf
    • http://files.friendsofthefergusonforest.ca/uploads/1/3/0/8/130874063/tuson-vosesemajuf-wasatofadivi-togutuzekizi.pdf
    • http://files.phatplatter.com/uploads/1/3/1/4/131406506/nudun.pdf
    • http://mubunodu.queenofpeacerelform.org/uploads/1/3/1/3/131379532/tutatavi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/90063055455.pdf
    • https://cdn.shopify.com/s/files/1/0438/7799/0568/files/vpn_terbaik_android_untuk_game.pdf
    • https://cdn.shopify.com/s/files/1/0432/7004/5864/files/magakusegerimolagu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/6th_grade_science_review_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/romoluwemibisi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/adhyathma_ramayanam_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0444/3347/3702/files/python_count_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/rorexekotegobaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/zozozejoxakemabuduwulu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/phn_mm_tch_file_min_ph.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000632d.bin
cad35f949f81caedea64b4512a24259c2ccaf18bb75137e23776af54237ac45e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x632D 5260 bytes
font_01_sfnt_off000074f8.bin
c64fb5824b1a6df9750f6dbcc5f33e6fc3fecd8ead51470dab9cf2f7cd0cb672		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F8 10420 bytes

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