Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4673a951977a88b…

MALICIOUS

PDF

45.2 KB Created: 2020-08-22 07:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94ce801552c208cc143b7633ac2aba60 SHA-1: f277322d02ee55b312f419e0959baf5619593743 SHA-256: d4673a951977a88bd26b706a91e4b4fd47ef4091179fb28a1844d1411098029b
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to external resources, including a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'ebook reader pdf apkpure' and includes the malicious URL. This suggests a social engineering attack aiming to trick users into downloading potentially harmful software or visiting malicious sites.

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=ebook+reader+pdf+apkpure
    • http://files.erp-selection.org/uploads/1/3/2/3/132302780/momigogogimujosise.pdf
    • http://napopiv.ellawatkinsactor.com/uploads/1/3/0/7/130775164/zaxonufekupigava.pdf
    • http://files.dinhhoaitram.com/uploads/1/3/2/7/132740361/5218793.pdf
    • https://cdn.shopify.com/s/files/1/0445/8224/0420/files/arrange_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/3019/7910/files/bijumusixiki.pdf
    • https://cdn.shopify.com/s/files/1/0434/0832/6812/files/the_reader_by_bernhard_schlink.pdf
    • https://cdn.shopify.com/s/files/1/0431/6279/6186/files/gumona.pdf
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/bepuximupapubajedaserif.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/music_certificate_template_printable_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/1274/2555/files/jozidigebezosolaxelev.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/gavolunejopefotanove.pdf
    • https://cdn.shopify.com/s/files/1/0431/7521/5258/files/android_auto_apk_4pda.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006714.bin
e6241b6710154f6d9d2e3992dacce9bd785f4160a4b9fc0332c215e1a46acfa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6714 4632 bytes
font_01_sfnt_off000076dc.bin
5cc73af7041400a906547058a24edb030cd0d5d2a016e0a86a5f686fc9b4bf0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76DC 10300 bytes
font_02_sfnt_off00009a30.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A30 4324 bytes

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