Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1301adc6d4279d…

MALICIOUS

PDF

41.9 KB Authoring application: Adobe PDF Library 9.0
MD5: be120eb409238a21c3f6328117f56b2c SHA-1: 473138debe0e2f0e59d7dfce72e86ab9d72e9d1f SHA-256: 5a1301adc6d4279dec438728a3b263616e6e381009c354507cfbce5b05dc7b2e
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO poisoning attack. The ClamAV detection and ML classifier further confirm its malicious nature. No scripts were extracted from this sample, and the document body was heavily truncated and unreadable, limiting further analysis of the specific lure.

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://nakayamaus.com/uploads/1/3/0/4/130435956/5034177.pdf
    • http://massagefinest.com/uploads/1/3/0/8/130873908/fesok_rudumebebezemuf.pdf
    • http://bluelionelectronics.com/uploads/1/3/0/6/130621116/38b63a54e.pdf
    • http://artworkrunner.com/uploads/1/3/0/8/130814401/dajama_xikeze_fetifitufabedu_sojuj.pdf
    • http://morethansoulfood.net/uploads/1/3/0/5/130588258/niguxo.pdf
    • http://notaryofnh.com/uploads/1/3/0/3/130379251/bc8e978894b0.pdf
    • http://notesinthemargin.co.uk/uploads/1/3/0/7/130740558/2816071.pdf
    • http://bankufx.com/uploads/1/3/0/2/130270985/1118489.pdf
    • http://ptsacounciltestsite.org/uploads/1/3/0/6/130620912/jopopinuf_torerovunevifat.pdf
    • http://synchrocentral.com/uploads/1/3/0/6/130604147/motizifapanidun.pdf
    • http://lwkdesigns.com/uploads/1/3/0/3/130379292/925576.pdf
    • http://www.nursediaryapp.com/uploads/1/3/0/7/130739646/2029411.pdf
    • http://mykayscreations.com/uploads/1/3/0/2/130291779/5593442.pdf
    • http://stulead.org/uploads/1/3/0/6/130639765/kujonapekuxuxa.pdf
    • http://monicasscarfs.com/uploads/1/3/0/2/130291523/6906080.pdf
    • http://nurtureministries.com/uploads/1/3/0/7/130739076/64095.pdf
    • http://convertingequipmentparts.com/uploads/1/3/0/6/130621501/217e83a148f7c.pdf
    • http://huatequelive.com/uploads/1/3/0/7/130775971/rotibogejiz_pabirikada_konutopo_wugexomiv.pdf
    • http://creapoponline.com/uploads/1/3/0/7/130775818/b14eac2d8.pdf
    • http://www.starladeanmft.com/uploads/1/3/0/3/130323411/solawin.pdf
    • http://rockinghamlandscaping.com.au/uploads/1/3/0/5/130540746/wunozexagozewinexete.pdf
    • http://amteck.ca/uploads/1/3/0/2/130289651/2637f.pdf
    • http://markpuchalski.com/uploads/1/3/0/3/130379074/10daf854792d3.pdf
    • http://spacecreationdesign.com/uploads/1/3/0/5/130589097/130589097.html#debt+capital+markets+101+pdf
    • http://artworkrunner.com/uploads/1/3/0/8/130814401/dajama_xikeze_fetifitufabedu_

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000421c.bin
c7a4feb54b747b7cbe71def269b074ef16c6bb20844f06c5c3eef104aa3c7fc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x421C 7764 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.