Malicious PDF — malware analysis report

Static analysis result for SHA-256 7adbeee5e40a7923…

MALICIOUS

PDF

40.6 KB Authoring application: Smallpdf Desktop
MD5: 4fc39877c5a31ad9ec0c3ce966cdaf2f SHA-1: acff79eb7461605e387ef9a5743aed0fc3eee44f SHA-256: 7adbeee5e40a7923c2c837888812289c629f22a33bfe7a7f7190e5c04aacdc96
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. This suggests a phishing or SEO spam campaign, where the document acts as an attachment to lure users to malicious or deceptive content. The ML classifier and ClamAV detection further confirm the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://pineapplecoffeeandtea.com/uploads/1/3/0/8/130873937/9eb944.pdf
    • http://sweetwatermanors.com/uploads/1/3/0/2/130287242/nopagabuz.pdf
    • http://samsonrchobbyshop.com/uploads/1/3/0/5/130588153/6349149.pdf
    • http://virginiabeachfishing.org/uploads/1/3/0/7/130739789/dufosiletuf_jelasufifowelub.pdf
    • http://contyconstructions.com.au/uploads/1/3/0/7/130775310/guzoneb.pdf
    • http://stfs-technology.net/uploads/1/3/0/6/130639145/lodowal_renipipagato_bitugoledumo_mafarobifu.pdf
    • http://www.plumaspermaculture.com/uploads/1/3/0/5/130590541/banabimima-nadilu-wisikozizike-sexuxu.pdf
    • http://hostmaster.naijalink.eu/uploads/1/3/0/7/130775011/sozurenojijivunurawa.pdf
    • http://msentertainment.org/uploads/1/3/0/3/130312964/xutafulale.pdf
    • http://acgr.info/uploads/1/3/0/4/130483805/7808412.pdf
    • http://www.my2degrees.nl/uploads/1/3/0/6/130640133/85e8e91cb56d.pdf
    • http://getshowee.com/uploads/1/3/0/5/130539269/c3bf7013.pdf
    • http://rockymountfamilypharmacy.com/uploads/1/3/0/7/130740080/jizuwowipemuw_fedigejajijunov_rorifurolu_zozum.pdf
    • http://crossfitforteustis.com/uploads/1/3/0/4/130490451/muzex-pivezis.pdf
    • http://10xoceansolutions.com/uploads/1/3/0/6/130620881/6344024.pdf
    • http://www.anabelle-designs.com/uploads/1/3/0/2/130270894/deganumasutawe.pdf
    • http://michaelsell.net/uploads/1/3/0/7/130776858/c7bfaf2.pdf
    • http://www.asiamarketcorp.com/uploads/1/3/0/5/130551046/palivadore.pdf
    • http://api.legoly.com/uploads/1/3/0/9/130969440/seretefuzoxup.pdf
    • http://emilycrubaugh.net/uploads/1/3/0/5/130590334/liwugedumugukipijo.pdf
    • http://alohastudionh.com/uploads/1/3/0/7/130739067/8273505.pdf
    • http://createinsideout.com/uploads/1/3/0/5/130590367/bejekoral.pdf
    • http://fe-hotels.com/uploads/1/3/0/3/130313106/xodinilek.pdf
    • http://spinozaoil.com/uploads/1/3/0/8/130813632/lasotifobanurul_pugodixotali_rakamosowumu.pdf
    • http://74-123-73-17.mgwnet.com/uploads/1/3/1/0/131071043/5ad31fbd.pdf
    • http://cfthomas.com/uploads/1/3/0/5/130542875/130542875.html#acute+stress+reaction+icd+11

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b9d.bin
fbf298b9947f0b806efb5f7752df1abab8d7f9963cad571e90beedcac74dbdb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B9D 7444 bytes

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