Malicious PDF — malware analysis report

Static analysis result for SHA-256 174184160f23f2fe…

MALICIOUS

PDF

49.9 KB Authoring application: Poppler-utils
MD5: 91b6294d5002a47938413e725d7aa9a1 SHA-1: 8acdb0b19a9a3ced06c4889b479d2dc1a003c130 SHA-256: 174184160f23f2fe7dc7715a7de1676710009349fc1f6cbfc101cad03f0b08e6
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, suggesting a link farm designed to distribute malicious content. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall, indicating a phishing attempt. The embedded URLs are the primary indicators of compromise, likely leading to further malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 https://kuduzotaluwaz.weebly.com/uploads/1/3/0/3/130313145/loraxasabizija.pdf
    • https://tupasuwe.weebly.com/uploads/1/3/0/2/130289756/7f23c.pdf
    • https://nanemawuval.weebly.com/uploads/1/3/0/3/130312984/3700517.pdf
    • http://thespanishsojourner.com/uploads/1/3/0/4/130483558/lajeniwubutuzop.pdf
    • http://bchea.org/uploads/1/3/0/3/130323141/195fa5347.pdf
    • https://rosazelig.weebly.com/uploads/1/3/0/4/130488286/2276552.pdf
    • http://managewisconsin.com/uploads/1/3/0/2/130271143/5333833.pdf
    • https://sutezudadezizol.weebly.com/uploads/1/3/0/3/130323462/pafurag.pdf
    • http://mozutesija.rabota-v-taxi-spb.ru/uploads/2020/01/28/mojipopezufoko_jizezenuwo_gekabedilekun_fesobaxajupewo.pdf
    • http://getadvert.ru/uploads/2020/01/27/9668603.pdf
    • http://power-up-potential.com/uploads/1/3/0/4/130435659/4224422.pdf
    • http://zamo.chaika-yalta.com/uploads/2020/01/27/warizulawefut.pdf
    • https://rezalodapigar.weebly.com/uploads/1/3/0/2/130287445/6817229.pdf
    • http://malisahome.ru/uploads/2020/01/28/bitosezoxituzenul.pdf
    • https://zopinafedinego.weebly.com/uploads/1/3/0/4/130483123/0e8073f4daa.pdf
    • http://valkrystore.org/uploads/1/3/0/3/130323761/1636032.pdf
    • http://kerchevaleyecare.com/uploads/1/3/0/3/130313046/935478.pdf
    • http://xusaru.volkanarslan.net/uploads/2020/01/27/1089183.pdf
    • http://aaron.ag/uploads/1/3/0/2/130289551/dowod-detizavaxiwop-rufoner.pdf
    • http://jefferson.store/uploads/1/3/0/4/130489358/b877c3c6ceb.pdf
    • http://zaxajisum.gk-absolutstroy.ru/uploads/2020/01/28/mujaj_javotawani.pdf
    • http://dolojif.difmed.com/uploads/2020/01/28/0dcebf1.pdf
    • http://carlyowens.com/uploads/1/3/0/6/130620979/130620979.html#reversed+phase+hplc+application+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000116a.bin
da1312cf4dfb37589c23f00ecf9b66abf8171fe42081362b1620446ffd36b231		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116A 8364 bytes

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