Malicious PDF — malware analysis report

Static analysis result for SHA-256 86acb3a879cee2dc…

MALICIOUS

PDF

41.2 KB Authoring application: PDF Studio First seen: 2020-09-07
MD5: 6f4001ced6a8099fa9a25eb077d55189 SHA-1: 10487f6137616ffae249d0647b34cb80a307ac1d SHA-256: 86acb3a879cee2dc29c5a4830252339f5cf89190ba3d8e31d998da92cea86322
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links to other PDF files, a technique commonly used for SEO poisoning and distributing malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing and distributing unwanted software. The embedded URLs likely lead to further stages of infection or phishing attempts.

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://affinityinnerbalance.com/uploads/1/3/0/4/130435524/fajipelunive_diwesagotafame.pdf In PDF document text
    • http://tabithasdesigns.org/uploads/1/3/0/4/130489776/gubewe.pdfIn PDF document text
    • http://ay-kay.com/uploads/1/3/0/2/130287992/3757814.pdfIn PDF document text
    • http://passiveprofiteer.com/uploads/1/3/0/3/130313242/aedbe9.pdfIn PDF document text
    • http://cpanel.rellaworks.com/uploads/1/3/0/2/130272557/gixip-judigixamomuzaw.pdfIn PDF document text
    • http://stylesnsmilessalon.org/uploads/1/3/0/6/130604165/zolisawavu-zufafigopek-lazarokewesi.pdfIn PDF document text
    • http://miavitta.com/uploads/1/3/0/6/130620538/736a8e24.pdfIn PDF document text
    • http://wendyohlendorf.com/uploads/1/3/0/4/130483299/gefav.pdfIn PDF document text
    • http://thomsonhay.com.au/uploads/1/3/0/5/130588599/9950696.pdfIn PDF document text
    • http://alektoinc.com/uploads/1/3/0/6/130639607/2585811.pdfIn PDF document text
    • http://allisonlynne.com/uploads/1/3/0/6/130604869/fonija.pdfIn PDF document text
    • http://brandgenius.com/uploads/1/3/0/5/130588276/sejotutibiludirep.pdfIn PDF document text
    • http://donknation.com/uploads/1/3/0/4/130478663/levin.pdfIn PDF document text
    • http://leahskun.com/uploads/1/3/0/7/130739015/navox-jabir-semitawapitu-xifikugovuvugaz.pdfIn PDF document text
    • http://musette-ventures.com/uploads/1/3/0/4/130483811/gagiwijegejejakaver.pdfIn PDF document text
    • http://michiganpc.org/uploads/1/3/0/7/130775972/2030201.pdfIn PDF document text
    • http://hostmaster.diled.eu/uploads/1/3/0/2/130289238/8507480.pdfIn PDF document text
    • http://guardiansoffaith.org/uploads/1/3/0/9/130969381/tobajagewol.pdfIn PDF document text
    • http://shannonbrownactor.com/uploads/1/3/0/8/130813606/gerasidivof.pdfIn PDF document text
    • http://jasonandjulie.net/uploads/1/3/0/5/130540789/db8750.pdfIn PDF document text
    • http://fly360green.org/uploads/1/3/0/2/130287493/vavijasudozevof-muduna-bonotamujanifej.pdfIn PDF document text
    • http://transformationspersonaltraining.com/uploads/1/3/0/7/130776252/xepabeturadiwemetux.pdfIn PDF document text
    • http://blacksmithspdf.com/uploads/1/3/0/5/130542773/jolugisekorizetit.pdfIn PDF document text
    • http://spinvrijwonen.nl/uploads/1/3/0/5/130588999/3778187.pdfIn PDF document text
    • http://myptsdveteran.com/uploads/1/3/0/6/130605416/d590e1b8.pdfIn PDF document text
    • http://bv6g5.bpmtc.com/uploads/1/3/0/7/130775850/130775850.html#pasar+de+pdf+escaneado+a+word+editableIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AAB 9340 bytes
SHA-256: fdde631ac9e8316d6e8c0e8620044ec98ca93d6f521d7cc593c77bb614a7228f

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