Malicious PDF — malware analysis report

Static analysis result for SHA-256 183870b2099ebf6e…

MALICIOUS

PDF

46.0 KB Authoring application: pstoedit First seen: 2026-05-08
MD5: 7a4f95d9930bae76b9ddcf94cf95fc6d SHA-1: 386c72f9f8923f9529934039d75f979f4e44b7d6 SHA-256: 183870b2099ebf6e1f38b0b76ce436a48a41863b6e8a8ad25b19cda876247c59
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating it contains a large number of external links. The embedded URLs suggest a link farm or SEO manipulation tactic, potentially leading to malicious content or phishing sites. While no scripts were explicitly extracted, the nature of the PDF and the numerous external links strongly suggest it's part of a malicious campaign, likely involving spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • 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.
  • 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://cunninghamsinnovations.com/uploads/1/3/0/6/130604494/nalizi.pdf In PDF document text
    • http://onelegchallenge.org/uploads/1/3/0/4/130483902/00a8c1768.pdfIn PDF document text
    • http://sobo.myta-salon.ru/uploads/2020/01/28/7d3706961b6.pdfIn PDF document text
    • https://xesivako.weebly.com/uploads/1/3/0/6/130605115/mamizuwobe_mowava_larewokosire.pdfIn PDF document text
    • http://newlifefitz.org/uploads/1/3/0/2/130287976/9079946.pdfIn PDF document text
    • http://stanleycovington.com/uploads/1/3/0/4/130476493/191501.pdfIn PDF document text
    • http://sitemuse.org/uploads/1/3/0/4/130436315/givaretoragole.pdfIn PDF document text
    • http://adams-aardvarks.com/uploads/1/3/0/6/130603728/toxoveloz.pdfIn PDF document text
    • http://jukeboxarcade.com/uploads/1/3/0/6/130639019/1742683.pdfIn PDF document text
    • http://dodos.arenda-apparata.ru/uploads/2020/01/27/migoxaluvedu.pdfIn PDF document text
    • http://sshvug.com/uploads/1/3/0/3/130313634/8489590.pdfIn PDF document text
    • http://teleboost.online/uploads/2020/01/28/xiwixumimesevax.pdfIn PDF document text
    • http://luvevi.chwichen.com/uploads/2020/01/28/lusafupa.pdfIn PDF document text
    • https://penitasozazup.weebly.com/uploads/1/3/0/6/130604742/juranusosuv_sobovumep.pdfIn PDF document text
    • https://nogotitafa.weebly.com/uploads/1/3/0/5/130590296/9554353.pdfIn PDF document text
    • http://lanatureetlebienetre.com/uploads/1/3/0/6/130604949/310d053781be76.pdfIn PDF document text
    • https://vezirekawadas.weebly.com/uploads/1/3/0/5/130539642/d14ea0bd.pdfIn PDF document text
    • http://flowito.com/uploads/2020/01/29/1544808.pdfIn PDF document text
    • http://judig.tamita-tami.pro/uploads/2020/01/28/tawatogofimikivuwes.pdfIn PDF document text
    • http://sopa.sleepgid.ru/uploads/2020/01/29/702473.pdfIn PDF document text
    • http://dexoclothing.com/uploads/1/3/0/5/130540585/biwoputakej.pdfIn PDF document text
    • http://barbershopyyc.com/uploads/1/3/0/5/130590297/wisenaxenejefiso.pdfIn PDF document text
    • http://thegatlinburgtourister.com/uploads/1/3/0/3/130323342/jimizifu-vufiladeta-vujakegat.pdfIn PDF document text
    • http://575creativecrafting.com/uploads/1/3/0/5/130588784/2363553.pdfIn PDF document text
    • http://jop.voloklinik.com/uploads/2020/01/27/zozuw-jipetumi-rejosoruvubuw-nebupiwunesegup.pdfIn PDF document text
    • http://mymissblue.com/uploads/1/3/0/5/130551927/130551927.html#text+me+merry+christmas+sheet+music+pdfIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text
🗂 Part of campaign: adams-aardvarks.com 4 samples

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1749 9440 bytes
SHA-256: 6005447d842353aff69b4edf18daf425f2196ee98268abccd75dc9fd925867d0
font_01_sfnt_off0000757c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x757C 4376 bytes
SHA-256: 650526cd053203bbabcbb8363bb14c6a98c6ed237a7b6f70964fcc3ca3867fa9

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