Malicious PDF — malware analysis report

Static analysis result for SHA-256 228d12c4fc1f05ce…

MALICIOUS

PDF

39.8 KB Created: 2020-05-19 08:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07e59e1cae78ab3d581e2378d5482636 SHA-1: feffa11b28bb201fc3bb1b1fc6ddb78ce51a2e97 SHA-256: 228d12c4fc1f05ceeb5a65b42853189b4754b1a72504411f5b66a4bcad6c9739
94 Risk Score

Malware Insights

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

The PDF document is identified as malicious by an ML classifier and contains a large number of external links, characteristic of a link farm designed to distribute malicious content. The document body, though partially corrupted, suggests a lure related to a 'Dodge caliber repair manual pdf', aiming to trick users into clicking on the embedded URLs. These URLs point to other PDF files hosted on various domains, likely serving as a distribution mechanism for further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://soulpremium.com/uploads/1/3/0/5/130544938/130544938.html#dodge+caliber+repair+manual+pdf
    • http://cotebrotherslawncare.com/uploads/1/3/0/6/130639574/fidekofosozejizo.pdf
    • http://marijuanabudmarketonline.com/uploads/1/3/0/5/130541211/9678494.pdf
    • http://icg.solutions/uploads/1/3/0/4/130436337/volofenim-fijigumeweremup.pdf
    • http://calibermed.com/uploads/1/3/1/4/131406449/3254264.pdf
    • http://newportbellevue.com/uploads/1/3/1/4/131407388/taxalixajuwiwuvikafi.pdf
    • http://silvercanes.com/uploads/1/3/1/4/131483128/703336.pdf
    • http://tntsecurityplus.com/uploads/1/3/1/4/131438086/55a817.pdf
    • http://claudiawrightson.com/uploads/1/3/1/4/131408224/69dc9.pdf
    • http://bigskyalchemy.com/uploads/1/3/0/6/130639605/51f7e75.pdf
    • http://dosvatostequila.com/uploads/1/3/0/7/130776775/9655847.pdf
    • http://mcgrawpowersystems.com/uploads/1/3/1/6/131606569/09d44159.pdf
    • http://630slcs.com/uploads/1/3/0/6/130639910/dapidubevobo.pdf
    • http://alliwantdesigns.com/uploads/1/3/0/5/130588779/pazilojakoxid.pdf
    • http://teamnbc.com/uploads/1/3/0/6/130605059/zixupapawenag-redowejomatebe.pdf
    • http://hounddogmarket.ca/uploads/1/3/0/3/130313343/wuvabiv.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_off00006ef8.bin
eabd4edb3308807a214cea0a45f23543ce6a50688dfc8897bd24ea0be2e2a26e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF8 10900 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.