Malicious PDF — malware analysis report

Static analysis result for SHA-256 22f55925edb60e1b…

MALICIOUS

PDF

33.6 KB Created: 2020-08-26 07:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85e25d525ba321a9a2a3b20ef961ac74 SHA-1: 30eb0b189d4314beee2ec3aca159176ac92311d8 SHA-256: 22f55925edb60e1b1f2e01e8b7cf1b4c67ae27f7f207dde44672ebdcabb83650
120 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link disguised as sheet music, which leads to a link farm of other PDF files. The primary malicious URL is ttraff.com, which is known to host redirectors. The document body itself is heavily obfuscated but contains the lure text and the malicious URL.

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=heathers+the+musical+lifeboat+sheet+music
    • http://files.rozanalee.com/uploads/1/3/1/8/131872055/4999917.pdf
    • http://metovijox.fenianfear.com/uploads/1/3/2/7/132740708/tinogotasebodofusij.pdf
    • http://vopofaket.penultimatephotos.com/uploads/1/3/0/9/130969264/kuxijapufidugoj-jomawizakog-zejejegekizudi-setobu.pdf
    • http://files.noirfashion.net/uploads/1/3/0/7/130775506/vajuninitid-tarugisaban-puzaxam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9921/0407/files/tamadufa.pdf
    • https://cdn.shopify.com/s/files/1/0440/2806/7990/files/jinixezirozorezikoju.pdf
    • https://cdn.shopify.com/s/files/1/0435/5109/6993/files/39213759297.pdf
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/xapudajatezunegunixutiduw.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/powufegu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/loxezafij.pdf
    • https://cdn.shopify.com/s/files/1/0438/3876/7264/files/54822434318.pdf
    • https://cdn.shopify.com/s/files/1/0461/1617/6036/files/3925416144.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5085/files/ferajorasod.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8822/files/diabetes_ketoasidosis_adalah.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_off0000449e.bin
aa116f3d08aa0b2e7964c73750ffd0b653fa8e59a5fecb3d3104fda106bcb8ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x449E 5220 bytes
font_01_sfnt_off00005633.bin
bf38124e72518b1835ed6ac6cecb5a0b30b5e0d88387a876b49faeddadc5a854		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5633 10324 bytes

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