Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e73b4b722d5c5d4…

MALICIOUS

PDF

47.7 KB Authoring application: Adobe PDF Library 9.0
MD5: 1e2a3ed5f49d3514d2ad33e8785221a2 SHA-1: 5e12c97074cc3abc5a860b947b76ee06ed765338 SHA-256: 3e73b4b722d5c5d4c18f05f4ac9e6531393f838bedc9c0f3caaba9103876f8df
150 Risk Score

Malware Insights

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

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 or a distribution mechanism for further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support its malicious nature. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://www.tccpresidentsearch.com/uploads/1/3/0/5/130539319/1741500.pdf
    • http://lacedbyleshea.com/uploads/1/3/0/6/130639980/mekudevigoju.pdf
    • http://colombohockey.com/uploads/1/3/0/2/130288761/zonurikofugaf.pdf
    • http://kinseyswainphotography.com/uploads/1/3/0/3/130313657/3238653.pdf
    • http://my-trg.com/uploads/1/3/0/6/130620919/5edfa8d9e762dd2.pdf
    • http://christengemeinde-offenburg.com/uploads/1/3/0/6/130639762/3c58eb6dbc3b22.pdf
    • http://americanshomer.com/uploads/1/3/0/6/130604013/7250650.pdf
    • http://renotahoetonightmagazine.com/uploads/1/3/0/3/130379475/61bb6879fc.pdf
    • http://mygriffinranch.com/uploads/1/3/0/5/130588202/2098618.pdf
    • http://anthroup.com/uploads/1/3/0/7/130739495/sijusojete-damizuwerakono-zuzelekuto.pdf
    • http://quartzplanning.com/uploads/1/3/0/5/130550912/devevanin-jikatoka.pdf
    • http://patchesforbikers.com.au/uploads/1/3/0/2/130271224/tilipuzuzifi.pdf
    • http://minibitedelights.com/uploads/1/3/0/6/130639221/daxowunuz_gilabe.pdf
    • http://cothamsinthecity.com/uploads/1/3/0/6/130604359/74ed46de9666.pdf
    • http://chitowngala.com/uploads/1/3/0/6/130604730/6681023.pdf
    • http://annsmithphotography.com/uploads/1/3/0/4/130489342/1a599.pdf
    • http://rockcliffetennis.ca/uploads/1/3/0/4/130490719/vudamavaxinu.pdf
    • http://smokin.tires/uploads/1/3/0/3/130324292/130324292.html#home+science+project+file+class+12+cbse+pdf
    • http://www.tccpresi

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033d7.bin
1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
pdf-font-stream PDF embedded font (sfnt) at offset 0x33D7 1388 bytes
font_01_sfnt_off00003c61.bin
90adf5cfa7459e98563cb0f3abc249a2bc3cda489ade071c574619a37c818d08
pdf-font-stream PDF embedded font (sfnt) at offset 0x3C61 11072 bytes
font_02_sfnt_off00005c9e.bin
a78c042bfc4d2248f37a1906667639dbe0bf5319f25d4c0490e443cca51f0ff1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9E 8280 bytes