Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf9bcd2f666294c3…

MALICIOUS

PDF

55.7 KB Created: 2020-07-28 08:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b69ab4ead288de57de3e8278781828b6 SHA-1: 07b6ca2fe3323dce34278f582dfae909c6855196 SHA-256: bf9bcd2f666294c3b0db14b7cbbc8227ae2361134f71782f54654c2c92a934d7
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=transformers+energon+tv+series', points to a known malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to direct users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=transformers+energon+tv+series
    • http://files.umaraniiyli.com/uploads/1/3/2/7/132740375/zitinizinewe-jilimaduf-wevitufujusop-pijoratavipuz.pdf
    • http://files.onestopcustomshop.com/uploads/1/3/1/4/131407067/zojugujuzadazemitad.pdf
    • http://files.wisconsinbaroque.org/uploads/1/3/2/7/132740949/povozaxagoleje.pdf
    • http://files.umaraniiyli.com/uploads/1/3/2/7/132740375/zitinizinewe-jilimaduf
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/sorivofuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34803766861.pdf
    • https://cdn.shopify.com/s/files/1/0434/5213/7622/files/tipuxenawesafikiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/0532/1109/files/nuxajesademezodavugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5149/files/1770270224.pdf
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/rerofazinamiwinonafeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/95044575603.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdf
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/7243128067.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/lidat.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/rofusagajamamawadow.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/somej.pdf
    • https://cdn.shopify.com/s/files/1/0437/0916/9815/files/8659801787.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/30773417949.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_off00008342.bin
76bf2fd8af2c8adb0f1cd2662a536b2eb9e0859846d601de2eb0d6bf7ab27d8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8342 6136 bytes
font_01_sfnt_off00009874.bin
780b595bc0959388c19c6e07dcb6f947286bc0f7a367de78764af3ac10e7704d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9874 4852 bytes
font_02_sfnt_off0000a8d9.bin
43797f2ddba96293a6376bdfdce9360ce33a935a958ef4ed56e1394b4f1044b3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D9 12744 bytes