Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fa741ea6ae7b0f6…

MALICIOUS

PDF

30.0 KB Authoring application: PDF Studio
MD5: 169a1cc49a392d862334f3f474b34023 SHA-1: 58a07545ad4fac0f2cf3496c50ec2cc7d0efce25 SHA-256: 1fa741ea6ae7b0f6146635e96ebbc7a1a8becf5731124fdeaee039d06843d7c2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file exhibits characteristics of a phishing or SEO spam campaign, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. It contains a large number of embedded external URLs, many of which point to similarly structured PDF files on various domains. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to harmful content or facilitate further compromise. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://practicalstartupbook.net/uploads/1/3/0/7/130775001/5163047.pdf
    • http://designinhours.com/uploads/1/3/0/7/130775191/fomevipokusa.pdf
    • http://gmgranada.com/uploads/1/3/0/6/130621342/661780.pdf
    • http://acot.website/uploads/1/3/0/6/130620574/78d0ed5405.pdf
    • http://alswoodworkingtools.com/uploads/1/3/0/7/130775643/3312143.pdf
    • http://www.carouselmusictheatre.org/uploads/1/3/0/2/130272232/1eda89bc3.pdf
    • http://cpanel.elleextensioncils.com/uploads/1/3/0/8/130874435/996850.pdf
    • http://ndmbfc.com/uploads/1/3/0/2/130291908/nukajiwag_lafejevevovu_logolomopo.pdf
    • http://livelushly.com/uploads/1/3/0/5/130588159/famemusov.pdf
    • http://mjbjacobs.com/uploads/1/3/0/6/130640006/ab8a38b8.pdf
    • http://epicure-events-and-design.com/uploads/1/3/0/6/130603740/9116f57402.pdf
    • http://bubbleandmimiltd.com/uploads/1/3/0/2/130270872/7203071.pdf
    • http://www.aaroncharlesg.com/uploads/1/3/0/8/130874043/xotezipalo-velogafek.pdf
    • http://myshecollectiononline.com/uploads/1/3/0/4/130476004/xevubaze_jomelu_zisoxapexu_zowezekodido.pdf
    • http://hispanicaccessfoundation.com/uploads/1/3/0/3/130323412/5c7a8f1a359.pdf
    • http://go.lsbrpc.net/uploads/1/3/0/6/130604046/kulibatugo.pdf
    • http://ungranitodearena.net/uploads/1/3/0/3/130313746/0c7bc286a33e.pdf
    • http://hollyellisonmiller.com/uploads/1/3/0/2/130289530/4968082.pdf
    • http://lacrossewheel.com/uploads/1/3/0/3/130379581/nijuzonomaguz.pdf
    • http://magicaladventurestravelbystacy.com/uploads/1/3/0/4/130483728/3499606.pdf
    • http://mail.yogaaah.com/uploads/1/3/0/4/130475990/10f6cc1f.pdf
    • http://nolimitationsyouthservices.org/uploads/1/3/0/6/130604222/dafodeka_tunugerovetevun_dubarogo_jatapixib.pdf
    • http://spotfuse.net/uploads/1/3/0/4/130436154/f30465.pdf
    • http://kishwaleather.com/uploads/1/3/0/2/130288394/200906.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003457.bin
c6bf73727bc4da73f75c9805c50f33dbb0d86e53339e9534c1107410cbff1eba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3457 7932 bytes

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