Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea1405c040a4d1f…

MALICIOUS

PDF

43.4 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: 66ea611cadccab44a86e74fecff0cf6a SHA-1: c2c17800b254233dfab282b4d7b7cde836b1ab6c SHA-256: 8ea1405c040a4d1f3c42fa50abbf1f5c99525bcb17a1ef7e8b559b9441a0f2f2
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF files across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://psychologiesourcecode.com/uploads/1/3/0/4/130476632/9958151.pdf In PDF document text
    • http://petroyale.com/uploads/1/3/0/2/130291350/7443568.pdfIn PDF document text
    • http://theladsonline.com/uploads/1/3/0/2/130272976/kakiranefebikininafa.pdfIn PDF document text
    • http://adc-horses.com/uploads/1/3/0/3/130379475/vefaxogafofula-jabududi.pdfIn PDF document text
    • http://eatingnaturally.com/uploads/1/3/0/7/130740003/vagupaxupise-lujafatijabegat-suxijewutegax.pdfIn PDF document text
    • http://thurmondfarms.com/uploads/1/3/0/4/130488286/c69c37892d21a.pdfIn PDF document text
    • http://californiacastaway.com/uploads/1/3/0/6/130621895/defakovile.pdfIn PDF document text
    • http://david-ogilvy.com/uploads/1/3/0/6/130605307/a4f53824.pdfIn PDF document text
    • http://developmentechnwkllc.com/uploads/1/3/0/4/130483911/jadokemego.pdfIn PDF document text
    • http://josephinetemple.com/uploads/1/3/0/6/130621908/kukejivalodoxe_xaxeno_gofupatozemuruk_nebawaronosekip.pdfIn PDF document text
    • http://www.colorobstaclerush.eu/uploads/1/3/0/8/130814669/535566.pdfIn PDF document text
    • http://superfuckingamazing.net/uploads/1/3/0/4/130483963/9d190ff21.pdfIn PDF document text
    • http://evafarkascoaching.com/uploads/1/3/0/2/130271259/gerosuxakedez-nimunibusiw.pdfIn PDF document text
    • http://battlefieldlegions.com/uploads/1/3/0/2/130289272/wonuxo.pdfIn PDF document text
    • http://74-123-76-74.mgwnet.com/uploads/1/3/0/6/130604606/130604606.html#air+force+y+group+paper+2017+downloadIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000389b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x389B 7684 bytes
SHA-256: 577b20a5af0f8cb810b0a5bca7c5b5be2034ce13f15e94cfd735e15b31700d36
font_01_sfnt_off00004f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5E 7940 bytes
SHA-256: bdd82918ef0d52f77da0ec352cba92a2a9021269eddb7859e33991b3c6c6613a

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