Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b98d59b19ac00ab…

MALICIOUS

PDF

37.8 KB Authoring application: Scribus
MD5: 32badf1805c929c321decc8fa224f86f SHA-1: 2cf9ea65ba5c32e3d73edc512e6b573ac4de180f SHA-256: 5b98d59b19ac00ab3b63112892d85740de9b1c58a953490aeb815c8f09de3b71
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly indicate malicious intent, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted, but the sheer volume of outbound links suggests a phishing or content-distribution scheme. The primary attack pattern involves directing users to a network of external PDF resources.

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://olivesandoil.net/uploads/1/3/0/4/130476709/7182518.pdf
    • http://mikeflasterstein.net/uploads/1/3/0/6/130604218/letosivi_wazofepepixu_japif_moposezisam.pdf
    • http://ilovefatjacks.com/uploads/1/3/0/6/130621682/809ba7d3.pdf
    • http://holypostdigital.org/uploads/1/3/0/6/130620616/3181671.pdf
    • http://michaelbogdanffykriegh.com/uploads/1/3/0/5/130551794/rurofim.pdf
    • http://thecorporatecounselor.com/uploads/1/3/0/7/130740033/71b4f5.pdf
    • http://bargins.store/uploads/1/3/0/4/130483863/zaxolovijetegal.pdf
    • http://falkenbergadmissionsadvising.com/uploads/1/3/0/6/130640061/40050166afb92.pdf
    • http://assistensepay.live/uploads/1/3/0/6/130604366/2662089.pdf
    • http://minnesotalashextensions.com/uploads/1/3/0/6/130620986/c70edfe4e0c.pdf
    • http://nowtrainer.com/uploads/1/3/0/7/130739968/96f29bb6f.pdf
    • http://suntuffnatives.com/uploads/1/3/0/7/130739190/87007c8aa546b0.pdf
    • http://mspokrantsband.ca/uploads/1/3/0/2/130270889/940d64550.pdf
    • http://rebeccasiswick.com/uploads/1/3/0/7/130776460/mukafevix.pdf
    • http://sistersofsolace.org/uploads/1/3/0/3/130312968/a4f51a89e2.pdf
    • http://sunshinecoastcounselling.com/uploads/1/3/0/7/130776196/boruxuxedibitob_pusezifejob_duzijijixato_nigeponalinan.pdf
    • http://mommyandbee.com/uploads/1/3/0/8/130813095/tujerejuzuwebor.pdf
    • http://oakclass.com/uploads/1/3/0/3/130323167/caaaf82b45.pdf
    • http://themoviefangirl.com/uploads/1/3/0/7/130776031/bosoguzasef.pdf
    • http://declanvoss.com/uploads/1/3/0/7/130776089/5408200.pdf
    • http://greatguys.org/uploads/1/3/0/5/130545128/teredufoviwepokit.pdf
    • http://vegamala.net/uploads/1/3/0/7/130775284/7759442.pdf
    • http://eesome.design/uploads/1/3/0/4/130476359/sijevifebiv_teguk.pdf
    • http://thisisallisonlee.com/uploads/1/3/0/4/130490078/2986566.pdf
    • http://www.ivanabojovic.com/uploads/1/3/0/5/130551072/130551072.html#prepscholar+toefl+vocabulary

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ea.bin
9d6dabed2a8f2d7a43bf224c575b0f97743237a23ebdd646c7986ba4edff375f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30EA 7772 bytes

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