Malicious PDF — malware analysis report

Static analysis result for SHA-256 615203abdebdbae1…

MALICIOUS

PDF

44.2 KB Authoring application: Poppler-utils
MD5: 78639630c2530cd5d03fba19306e214b SHA-1: 793b73f5167ada776462099301a27d389dd0df42 SHA-256: 615203abdebdbae1c129cb2983be502100a38db684b4571700e69f152112b1e3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall, and an ML classifier also flagged it as malicious. The embedded URLs are likely part of a link farm designed to manipulate search engine rankings or redirect users to malicious sites.

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://nuggetandnancy.com/uploads/1/3/0/5/130544635/novitufetuvuvezo.pdf
    • http://www.midcenturymodernmazeart.com/uploads/1/3/0/6/130639879/vogobo.pdf
    • http://vandutchyacht.com/uploads/1/3/0/2/130291662/dekiti.pdf
    • http://hostmaster.reeftheband.com/uploads/1/3/0/2/130289385/7465226.pdf
    • http://princeofbarkness.com/uploads/1/3/0/4/130476632/pufodezaditibupew.pdf
    • http://dirtbagcoffin.com/uploads/1/3/0/5/130539875/2ffbc7.pdf
    • http://mbaoc.net/uploads/1/3/0/7/130775365/421ff050644d.pdf
    • http://limayapi.net/uploads/1/3/0/2/130272403/a24773019af6cd.pdf
    • http://naturalrawgoodness.com/uploads/1/3/0/6/130640051/roxapivororije.pdf
    • http://foxberryart.com/uploads/1/3/0/7/130776629/215ca1e8.pdf
    • http://nekomimilisa.net/uploads/1/3/0/3/130379447/9d2e4ed2d28f1.pdf
    • http://raremark.net/uploads/1/3/0/7/130776106/8264857.pdf
    • http://betteraustintoday.com/uploads/1/3/0/6/130639217/dubakaganigo-mujomelitub-fesutaxalorawab.pdf
    • http://guillenpujol.net/uploads/1/3/0/7/130740080/kawupitane_benixaviv_kilog.pdf
    • http://mywobblyireland.com/uploads/1/3/0/7/130739773/4917902.pdf
    • http://sawbible.com/uploads/1/3/0/4/130435791/nesejapajovod.pdf
    • http://mta-sts.mx.dillonbookstore.com/uploads/1/3/0/2/130291803/fulalolo.pdf
    • http://americanfootballstrategies.com/uploads/1/3/0/3/130313159/31eb5594e827.pdf
    • http://suppliermonkey.com/uploads/1/3/0/6/130621808/jadakera_sijorilevaxi_dusakoji_mireg.pdf
    • http://cresaptownsportsmanclub.net/uploads/1/3/0/6/130604862/19b4a.pdf
    • http://centralmooloolah.com/uploads/1/3/0/4/130435518/9977297.pdf
    • http://www.bluesteelradio.com/uploads/1/3/0/6/130640018/8564457.pdf
    • http://bitcoinersnow.com/uploads/1/3/0/4/130483507/ronewasodupe.pdf
    • http://drthmeyer.net/uploads/1/3/0/2/130289400/wilomevis.pdf
    • http://gettinggirlsonline.com/uploads/1/3/0/6/130604530/kaxetage.pdf
    • http://o0ype.bpmtc.com/uploads/1/3/0/7/130775107/130775107.html#acute+lymphoblastic+leukemia+survival+rate+adults

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004896.bin
1384275332d045d774140e0356456a56f4e4c740ad4d706f3c137c136eb8cb5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4896 8076 bytes

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