Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eedd816017ab6da…

MALICIOUS

PDF

71.9 KB Created: 2020-08-21 17:38:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a30da8bc2ea6dff118932053d0f3f3d SHA-1: 595f6fae0ef25b5aa3058e7ee65cb4b3850a1d15 SHA-256: 8eedd816017ab6da84157276c3875233b0fa9055edc724fc7aa1d8ff077bab17
130 Risk Score

Malware Insights

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

The PDF document contains a lure related to an admission form, which is a common tactic for phishing. It embeds numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=admission+form+of+ignou+for+m.+com'. The presence of a link farm and the malicious redirector strongly indicate a phishing or malicious redirection attempt. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=admission+form+of+ignou+for+m.+com
    • http://pifefive.chapel-associates.co.uk/uploads/1/3/1/4/131453114/9071163.pdf
    • http://piduv.homeandschoolsts.org/uploads/1/3/0/8/130814328/560440.pdf
    • http://vutiga.diversitypractitioners.org/uploads/1/3/0/7/130739206/8887768.pdf
    • http://files.aaimk12.org/uploads/1/3/1/1/131164372/sotoxafigum-dozubazovo-kikudu-xabifojorafebu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/biological_computers.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/31487675316.pdf
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/9217672847.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/53327302568.pdf
    • https://cdn.shopify.com/s/files/1/0433/4311/8495/files/60640984928.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/94082813321.pdf
    • https://cdn.shopify.com/s/files/1/0433/7605/0330/files/pubelutuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/xapobebogitagopefuxina.pdf
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/jajipiba.pdf
    • https://cdn.shopify.com/s/files/1/0429/7362/6524/files/96164976653.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/59746000577.pdf
    • https://cdn.shopify.com/s/files/1/0430/0265/8979/files/58942586213.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_off0000b75f.bin
6c6b20cad923ac0fd994e4318b432ae42ebd7463e8270946c954fe44f9c5ec33		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB75F 5120 bytes
font_01_sfnt_off0000c8b4.bin
c3877eadb1030cfd294f4b84dd002940dfbde39e34561dbffd675e5ffc64b45c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B4 10736 bytes
font_02_sfnt_off0000ed98.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED98 16164 bytes
font_03_sfnt_off000102ed.bin
2b81342b2f8df5e70d9ca2721e12f99d53424624d8e28e42b49a06ba7b1ded6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102ED 3968 bytes

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