Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe49882f146da41…

MALICIOUS

PDF

46.6 KB Created: 2020-08-14 07:16:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 690ff58450cf964a64b23820c6c213dd SHA-1: 37f0dfe5c96b854214c605dc905f3a1a7d4bb175 SHA-256: bfe49882f146da41b50406f75546d71d4ff4243edbaf59cd7a87e0f0156393a0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=brain+on+fire+book+free+pdf'. This indicates a social engineering lure, likely attempting to trick the user into downloading further malware or visiting a malicious site. The document also contains a large number of embedded links, many of which are to shopify.com, but the primary malicious link is the redirector.

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.com/pify?keyword=brain+on+fire+book+free+pdf
    • http://tadunuros.cartelivision.net/uploads/1/3/1/4/131483061/8cc64781193fe.pdf
    • http://files.oregonbigfootfestival.com/uploads/1/3/1/4/131437530/vilobogire.pdf
    • http://files.calvarybaptistemporia.org/uploads/1/3/1/4/131437983/ea0ea18dcabf6.pdf
    • http://files.sleepingbeeathome.com/uploads/1/3/2/6/132695701/4744904.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/botitowafuvev.pdf
    • https://cdn.shopify.com/s/files/1/0431/6502/4412/files/biology_form_4_notes_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/jedodowagojubelekidu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/ielts_general_writing_task_1_samples.pdf
    • https://cdn.shopify.com/s/files/1/0432/2200/7969/files/28265050609.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/16466982027.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0134/files/paxorir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdf
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/27519024253.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/74877217383.pdf
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/naxakawatelitomuboxobezi.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_off0000789e.bin
f12825a664d4010486f83a4697998a5891ebf7e18801d0eeadc50fae2c90ce4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x789E 5076 bytes
font_01_sfnt_off000089f1.bin
3e4c8dc5df2aba5579eb666a8bebdbb4f0be588cb8e6c047b545f9343851fe15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89F1 10352 bytes

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