Malicious PDF — malware analysis report

Static analysis result for SHA-256 473c330e99d9d0b5…

MALICIOUS

PDF

38.0 KB Authoring application: Adobe PDF Library 9.0
MD5: 52535b909639b3bd766d0cd12a8e1dad SHA-1: c46bacd1bc76553840b8a74473ff3c25ae7959c8 SHA-256: 473c330e99d9d0b5bdf7981d9138d7d9ab8fac6760cadeb37d8e6dccc8f28b59
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic redirection intent. No scripts were extracted, and the document body content is largely garbled, but the heuristic firings and numerous external links are sufficient for this assessment.

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://opcgivethegiftofart.com/uploads/1/3/0/4/130476204/zudevub.pdf
    • http://breathlifeministries.com/uploads/1/3/0/9/130969494/kukejumoduzamisavuze.pdf
    • http://tutorvirginia.com/uploads/1/3/0/6/130621464/4461690.pdf
    • http://shellygiggey.com/uploads/1/3/0/3/130323401/6aefd8bc.pdf
    • http://badbonbon.com/uploads/1/3/0/7/130776061/kivarefek.pdf
    • http://dollhouseporcelain.com/uploads/1/3/0/5/130588548/kofeteno.pdf
    • http://petalcbdsandiego.com/uploads/1/3/0/6/130605490/216aeb4fdc.pdf
    • http://myqualityvalue.com/uploads/1/3/0/6/130621788/runafusutedem_neresir_batusopapafozi.pdf
    • http://greatmeolspreschool.com/uploads/1/3/0/5/130550698/zufoso.pdf
    • http://www.mymarlissavela.com/uploads/1/3/0/6/130620237/f3ec345b8fb.pdf
    • http://sonpeare.com/uploads/1/3/0/6/130639656/2b3fa52aa72ec4.pdf
    • http://justinhoeppner.com/uploads/1/3/0/7/130739544/1050000.pdf
    • http://www.southernrebelboutique.com/uploads/1/3/0/4/130477755/78fce6d43ec1ba.pdf
    • http://tihder.com/uploads/1/3/0/4/130483158/vinuxekopo-wojanubal-dezola.pdf
    • http://nuskin-success.com/uploads/1/3/0/6/130620930/d7b0c5.pdf
    • http://xznlz5l3.brdge.org/uploads/1/3/0/9/130969455/130969455.html#clasificacion+de+las+bacterias+segun+su+nutricion+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003775.bin
6e0b7e4ee076f40599aaa118d68129ab82b27f80cd70e3ed0a6b2d65cd99150e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3775 9332 bytes

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