Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8d1fba66b47c0f…

MALICIOUS

PDF

44.2 KB Created: 2020-08-12 17:27:57 +03:00
MD5: fe797c03a0672f5e119fa599c6f85898 SHA-1: 82b06b8faf51f9af595c7b6aa5748fefa5eda916 SHA-256: 9e8d1fba66b47c0f0b664e24f23bfc313a11a2cd3e1326542b7f1128465fba4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF file contains a significant number of embedded external links, indicative of a link farm designed to manipulate search engine rankings or distribute malicious content. One of these links, 'https://ttraff.cc/pify?keyword=metabolomics+introduction+pdf', is identified as a known malicious redirector. The presence of a 'LOLBin command execution instruction' heuristic suggests that the document may also attempt to execute commands on the user's system, potentially to download further payloads or exploit vulnerabilities.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=metabolomics+introduction+pdf
    • http://rigetol.jreschkeart.com/uploads/1/3/0/9/130969426/rewamigutukova_linufuvoja_surujezi.pdf
    • http://files.butterflyposturalchair.com/uploads/1/3/1/1/131164176/ladev.pdf
    • http://files.curlyhorsevermont.com/uploads/1/3/2/7/132741241/vamamopuranib.pdf
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/59605078276.pdf
    • https://cdn.shopify.com/s/files/1/0434/3644/1752/files/chicago_building_code_violations.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/mozovufapofexini.pdf
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/71042148472.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/bartok_viola_concerto.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/how_to_write_bytearrayoutputstream_into_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/16691268309.pdf
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/60260379050.pdf
    • https://cdn.shopify.com/s/files/1/0433/7909/7758/files/mefelugeruguwakidunadever.pdf
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/vagabat_gita_bengali.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/82886410101.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/tapumunesaxezakejib.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_off00006d74.bin
ed35521c45442ca4e48b442f419f644f1378b51b1f2ebcdd90aecc5f05548af2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D74 5448 bytes
font_01_sfnt_off00007fe6.bin
2f25682dc6a0d2b4cbcdb0de6d9093dc8a7da03e8d5597cc1996f0f24c1e5f10
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE6 10716 bytes