Malicious PDF — malware analysis report

Static analysis result for SHA-256 24bb99fec02f667c…

MALICIOUS

PDF

38.6 KB Created: 2020-03-22 02:05:48 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 11d7e5c6901526aead46593d3095edc4 SHA-1: 6227d99e4e71eccf0761bda353f642a491617f6d SHA-256: 24bb99fec02f667cceb1577b7dd463d7428eefad7db5567824a90695fd0038b7
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. The document body explicitly mentions 'Halo 2 installer free download for pc', indicating a lure to download potentially unwanted or malicious software. The presence of a 'LOLBin Run Command' heuristic firing suggests that the document may also contain instructions for executing commands via Windows scripting tools, likely to facilitate the download and execution of further payloads.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://irieint.com/uploads/1/3/0/6/130639419/130639419.html#halo+2+installer+free+download+for+pc
    • http://curleyscience.com/uploads/1/3/0/3/130379307/e3c6e.pdf
    • http://quantumbeveragegroup.com/uploads/1/3/0/5/130543173/tulasabitudawofopup.pdf
    • http://newbeginningsinvestorsllc.com/uploads/1/3/0/6/130620728/wagewalamorim_jedivedo_misavidelaru_sawem.pdf
    • http://lilahidalgo.info/uploads/1/3/0/5/130589128/9368316dd8df16.pdf
    • http://naturecoastwedding.com/uploads/1/3/0/5/130550794/331f90efd81f61.pdf
    • http://riverwrynn.com/uploads/1/3/1/1/131163760/nijorulevadenimev.pdf
    • http://clazs.com/uploads/1/3/0/7/130738639/a8a95a9b6db.pdf
    • http://whisperingwillowsalpacas.net/uploads/1/3/0/8/130813798/e4f5e6a49dc5.pdf
    • http://elegancelights.com/uploads/1/3/0/5/130539042/61349.pdf
    • http://livingcleanshop.com/uploads/1/3/0/7/130775251/d29ead33ed41.pdf
    • http://hooknchain.com/uploads/1/3/0/6/130639626/2354040.pdf
    • http://yoniwidesign.com/uploads/1/3/0/8/130813420/rovizojarujejil.pdf
    • http://acc-guhotelandconferencecenter.com/uploads/1/3/0/6/130605010/sakexevivibibof.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ce4.bin
a0db61681c704a9e6f4c4408c3662c7f5cbf3fe8b1cb8473d5719ffcdf24de34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE4 8424 bytes

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