Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d27e86bef5b276…

MALICIOUS

PDF

34.5 KB Authoring application: PDFedit
MD5: 23ce8fbc27bedbf0a655227d557b4305 SHA-1: 29b077ed83a491ecb2b05a8ef3ea1460a33f7bb2 SHA-256: 01d27e86bef5b276796b2513caf0cd8eea93cc45889146100a5ab936e8aa8a83
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, disguised as information about acid reflux, which is characteristic of a link farm or SEO spam. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further indicate malicious intent. The embedded links likely lead to further malicious content or phishing sites.

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://sophisticatedpreserves.com/uploads/1/3/0/2/130288926/7214242.pdf
    • http://mrsmichelebrown.com/uploads/1/3/0/6/130603772/sopowalikajirulopufe.pdf
    • http://bughunters.eu/uploads/1/3/0/2/130287960/981bb9.pdf
    • http://gelottiicecream.com/uploads/1/3/0/3/130313111/8072693.pdf
    • http://flowinaction.net/uploads/1/3/0/7/130738537/zidoxedutobawaxi.pdf
    • http://innerfish.com/uploads/1/3/0/5/130551756/dewogalib.pdf
    • http://deerparktreeservices.com/uploads/1/3/0/7/130740166/woriwomakis_xavulu.pdf
    • http://thingsome.com/uploads/1/3/0/3/130379824/karawe_mumubigizo_zinofovadegu_nirimitaveriz.pdf
    • http://balisurftours.info/uploads/1/3/0/6/130621020/c5becf60.pdf
    • http://thetipewax.store/uploads/1/3/0/3/130323222/45610d205.pdf
    • http://bayesianupdate.com/uploads/1/3/0/2/130271043/keruwaramatexu-rutinuwixif-gisubuw-xifopa.pdf
    • http://bouldenscience.com/uploads/1/3/0/3/130323462/tipalunuwexawi-ridupek.pdf
    • http://teamgrowcle.com/uploads/1/3/0/7/130739635/c5ebf5809a6d2d5.pdf
    • http://vreedy.shop/uploads/1/3/0/2/130272254/ad3f81.pdf
    • http://mydetailguyinc.com/uploads/1/3/0/8/130814863/vomonibuxaxur.pdf
    • http://dedicated-20.pleasingfood.com/uploads/1/3/0/7/130738525/130738525.html#list+of+foods+that+don%27t+cause+acid+reflux

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002da0.bin
95c62798d14c3beba2f02c4c0ebcc6f3572e3c5125c37d872371dd18346aa7fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA0 7192 bytes

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