Malicious PDF — malware analysis report

Static analysis result for SHA-256 4144a5144d483d1f…

MALICIOUS

PDF

84.6 KB Created: 2020-09-19 06:39:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f96a1dfa0bd97eb37c0345801ee0ed34 SHA-1: d5a28864580db710ff802eeb141082b9bdb0fd8b SHA-256: 4144a5144d483d1fae22d6805e481980f2d1ca1290f7378eb4829b63c536bec5
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead users to harmful content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to deceive users with a fake prize or parcel delivery, a common tactic in advance-fee fraud. The embedded URL 'https://ttraff.link/wix?keyword=jane+eyre+study+guide+questions+and+answers+pdf' is the primary IOC, likely serving as the initial entry point for a phishing or scam campaign.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.link/wix?keyword=jane+eyre+study+guide+questions+and+answers+pdf
    • http://files.armiesoftn.org/uploads/1/3/1/6/131606155/2d353ecf44.pdf
    • http://files.brennencooper.com/uploads/1/3/0/7/130775795/57222f79b4defe.pdf
    • http://wetovorit.elliseffect.com/uploads/1/3/0/7/130775209/3069555.pdf
    • http://lemizufon.celestejohnsonlpc.com/uploads/1/3/0/9/130969264/79f2606c.pdf
    • http://witopoxe.dbobkoagpcnp.com/uploads/1/3/0/8/130874388/vekufelifuwido-tosanifutij-gamonaj-jemedusu.pdf
    • http://files.matthew-wade.com/uploads/1/3/0/9/130969573/kejugivoso_diroxuwa_wufepokokus.pdf
    • http://zizonasad.nwuu.org/uploads/1/3/1/1/131163599/muxoxadukuxaxor-vifiri.pdf
    • http://filere.tylermartincis.com/uploads/1/3/2/8/132814476/nalokobopo_jinabujadipe_bekup_kopogera.pdf
    • http://wetovorit.elliseffect.com/uploads/1
    • https://61b2974e-1509-45b8-9ebd-5cede78eab92.filesusr.com/ugd/48d9a1_a5d78e90b3cf48b78054a61612d2964c.pdf?index=true
    • https://1fe9c82c-09c9-41ee-a717-8364503fb697.filesusr.com/ugd/fedf23_23ef1cb794494de795aea617768c1212.pdf?index=true
    • https://c565e610-aabd-473d-810d-ce8a49096b68.filesusr.com/ugd/a0d21a_26a45232077b4f6ebe4f0a6bddd57422.pdf?index=true
    • https://d285e57d-223e-4433-8abb-d755b3c9c408.filesusr.com/ugd/0cd019_00b864b8aa1c4a2b8e7cd78043529598.pdf?index=true
    • https://14d603b5-5f4d-4991-98fd-a25496e0ec96.filesusr.com/ugd/2e79a6_b9c420c8c6b34291801e6dff47d2912b.pdf?index=true
    • https://00d5fe3c-d79b-4e22-a5ee-7fc7ef397520.filesusr.com/ugd/bb4607_fca1f648eb564168b7f0958d7e678768.pdf?index=true
    • https://3ba60559-f461-408e-8906-038822769310.filesusr.com/ugd/dcc11b_058b3fb39be24378a339dcd1e5a95d4b.pdf?index=true
    • https://c83a825e-1e5c-4cb6-a476-1f0fc4fb486d.filesusr.com/ugd/1479de_54407f618d6641f79df5f6954712b39f.pdf?index=true
    • https://bd968052-89cb-4a7b-8e46-f14448220dde.filesusr.com/ugd/43d598_d1030ebcf7824ccdbbbaafc4698f85ad.pdf?index=true
    • 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_off00010e4b.bin
23e1260478f5f3c5b6f3666181155523c6b0a2e681f51f930ffefc4038b9bb99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E4B 5488 bytes
font_01_sfnt_off00012117.bin
f4f470d8a7743e9941b3e059999a6ee67759e33184239f8811e97abbac370321		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12117 10316 bytes

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