Malicious PDF — malware analysis report

Static analysis result for SHA-256 242f99f01354447d…

MALICIOUS

PDF

144.1 KB Created: 2020-08-13 21:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38bd4c85e1bd4a0fa8bcb9972ea6b114 SHA-1: 724a09a1067af0139e8dbf23c40395868b76b0c1 SHA-256: 242f99f01354447dd484ba620f5721915eb2631203522525bb367efc8995de6c
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Godrej industries annual report 2018' and the malicious URL. The PDF also exhibits characteristics of a link farm, with numerous external links, many of which are benign Shopify URLs, but the primary redirector is malicious. The SE_INVOICE_LURE heuristic suggests a pretext for the malicious link.

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.com/pify?keyword=godrej+industries+annual+report+2018
    • http://files.dongzehuo.com/uploads/1/3/2/6/132681812/f2c442bec6eb.pdf
    • http://sumadoso.stjohnsfoods.com/uploads/1/3/0/7/130738666/zufujuzuvudobo-rawevubekoj-momosiboderiju-sununelofajezan.pdf
    • http://files.toddkongart.com/uploads/1/3/0/8/130874284/tanijosepe-dolivoxoninusus.pdf
    • http://files.youchoimd.com/uploads/1/3/1/6/131637254/6cd7570a14c5cc.pdf
    • http://files.mermaidexplorers.com/uploads/1/3/1/8/131856333/5b632d.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/minority_scholarship_form_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0429/1864/1830/files/perbedaan_pembuluh_darah_arteri_dan_vena.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/82885203540.pdf
    • https://cdn.shopify.com/s/files/1/0437/2765/0970/files/fuxiloguzovajujapu.pdf
    • https://cdn.shopify.com/s/files/1/0436/6375/3369/files/13.pdf
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/pofapifixof.pdf
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/regcure_pro_keys.pdf
    • https://cdn.shopify.com/s/files/1/0431/6790/8004/files/94813290356.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/85594735873.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/14087044087.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/rovagosopesexes.pdf
    • https://cdn.shopify.com/s/files/1/0439/9949/4302/files/28666256932.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_off0001ea94.bin
c6f5e09bf97a5df02a7173c809c45e834d3fa53afaba90facd256bfac0479c77
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EA94 5580 bytes
font_01_sfnt_off0001fdae.bin
92bfb975e52969f27922e71d52cedf92d7f3d2de9a04af9526882f2f0864fd18
pdf-font-stream PDF embedded font (sfnt) at offset 0x1FDAE 13164 bytes
font_02_sfnt_off000228a8.bin
992f1f48767e9789809edcc007c3694f0f7ac7ea0fb1aa79e5db20c446531a4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x228A8 2320 bytes