Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d949000a4f27e7…

MALICIOUS

PDF

35.9 KB Authoring application: Solid Converter PDF First seen: 2020-09-24
MD5: 81652f09aba883739ef5061343d1d6ee SHA-1: 3794d7b0805ca37c73977976e330954e63bc8365 SHA-256: d2d949000a4f27e7b94c366a4b2c8433526f54568d660a1a7a13dcfd262e5f49
192 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content, as suggested by the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body itself is heavily obfuscated and does not provide clear user-facing text, but the heuristic firings strongly suggest a malicious intent related to link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://myartfairartists.com/uploads/1/3/0/6/130604834/lukuvalur-rulizig.pdf In PDF document text
    • http://www.mozaic.app/uploads/1/3/0/5/130550664/b9e4be9700c9f.pdfIn PDF document text
    • http://www.soultalkart.com/uploads/1/3/0/6/130605017/4022064.pdfIn PDF document text
    • http://workrescuegear.com/uploads/1/3/0/7/130739559/9188725.pdfIn PDF document text
    • http://ryanbelong.com/uploads/1/3/0/6/130604700/6299531.pdfIn PDF document text
    • http://aliveatfive.org/uploads/1/3/0/5/130551011/rajigo.pdfIn PDF document text
    • http://theoriginalfischix.com/uploads/1/3/0/4/130490117/8480538.pdfIn PDF document text
    • http://therileynixon.com/uploads/1/3/0/4/130488970/43bfe4.pdfIn PDF document text
    • http://riotthink.com/uploads/1/3/0/8/130814623/lizakeraremotugig.pdfIn PDF document text
    • http://grouperdate.com/uploads/1/3/0/6/130604771/8049174.pdfIn PDF document text
    • http://vibrationallyyours.com/uploads/1/3/0/5/130539074/bobigov-wirigur-darek.pdfIn PDF document text
    • http://gtecgrandeterreetancheitecuvela.com/uploads/1/3/0/5/130543156/5e00b1ea682b.pdfIn PDF document text
    • http://aj-saunders.com/uploads/1/3/0/3/130323210/bufukuxobuna.pdfIn PDF document text
    • http://arapahoepainting.com/uploads/1/3/0/6/130621502/suraviwijux.pdfIn PDF document text
    • http://resolutiontraining.net/uploads/1/3/0/6/130639774/3432346.pdfIn PDF document text
    • http://alloexo.info/uploads/1/3/0/4/130435673/zesowiz_moxobojifup_togoliveka_vugemezakipo.pdfIn PDF document text
    • http://morgansparkson.com/uploads/1/3/0/5/130551002/7420011.pdfIn PDF document text
    • http://boutiquenanamoda.com/uploads/1/3/0/5/130550929/2c2d3a8a.pdfIn PDF document text
    • http://collegeonlinetutors.com/uploads/1/3/0/2/130287953/juduvu_fimewa.pdfIn PDF document text
    • http://mybowtieproduction.com/uploads/1/3/0/3/130324206/97b5335dee7f.pdfIn PDF document text
    • http://joannalingnau.net/uploads/1/3/0/3/130323465/vakipawawil-xopajapidu.pdfIn PDF document text
    • http://njprint-wear.com/uploads/1/3/0/6/130639622/6b6a9e02.pdfIn PDF document text
    • http://sofiyacattery.nl/uploads/1/3/0/3/130379841/2728194.pdfIn PDF document text
    • http://hvo48.slpny.com/uploads/1/3/0/5/130541308/130541308.html#the+accidental+tourist+summary+pdfIn PDF document text

Related samples 5

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_off00002ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC2 7520 bytes
SHA-256: 125792dbdc426c35c96dcc5485fca7d85f93028e0e32d1f89c3c3963b7477302

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