Malicious PDF — malware analysis report

Static analysis result for SHA-256 708389d4523c8022…

MALICIOUS

PDF

52.1 KB Authoring application: Soda PDF
MD5: 4c2bb097fa3742e74dead34cfbe6dfbd SHA-1: 46444b2cd632eef725e78a452ae8e723fe01ec59 SHA-256: 708389d4523c80229daf19f4e0245111010e2336978f97c3159874900af32420
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm with 31 links, indicating a likely SEO manipulation or content distribution scheme. The embedded URLs point to numerous domains, suggesting a broad campaign. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://74-123-72-69.mgwnet.com/uploads/1/3/0/6/130604305/5943428.pdf
    • http://shiweiyulechengxinyuzenmeyang.jhamrick.com/uploads/1/3/0/6/130604733/6244086.pdf
    • http://weddingproct.com/uploads/1/3/0/5/130543941/d9b0babe.pdf
    • http://www.hockessinwalkintubs.com/uploads/1/3/0/5/130550972/rexewixixonu.pdf
    • http://nuancetravelacademy.com/uploads/1/3/0/7/130776158/dejesewuzepi.pdf
    • http://campbellreither.com/uploads/1/3/0/5/130590778/f119f87d7.pdf
    • http://rodiermail.com/uploads/1/3/0/8/130813658/remekobufavu_juduvodipurabob.pdf
    • http://aerogreen.solutions/uploads/1/3/0/5/130544063/jotepofalujosadawu.pdf
    • http://xinaobotianshangrenjianyule.br3h.com/uploads/1/3/0/5/130542965/c08df8de61.pdf
    • http://innerfish.com/uploads/1/3/0/7/130739827/4322934.pdf
    • http://iqseries.de/uploads/1/3/0/2/130289546/delosimupetigirut.pdf
    • http://www.temmasbatmitzvahproject.com/uploads/1/3/0/7/130775056/dinajokuzi.pdf
    • http://www.lebanon2025.com/uploads/1/3/0/7/130738684/galolekipajepovu.pdf
    • http://trailofhumanity.com/uploads/1/3/0/8/130873914/bec8aeb5.pdf
    • http://priyabery.com/uploads/1/3/0/4/130478106/vojabixigeves_rutaxilab.pdf
    • http://mta-sts.scituatefarmersmarket.com/uploads/1/3/0/6/130621511/f9ce32940847709.pdf
    • http://fella-ship.com/uploads/1/3/0/7/130739727/48551933.pdf
    • http://salvosurfboards.com/uploads/1/3/0/8/130814774/bonija.pdf
    • http://zingcomic.com/uploads/1/3/0/6/130604258/bilojekiganomod_tupedarunirar_kawaxebusur_vosugewelo.pdf
    • http://nupelicanparty.org/uploads/1/3/0/8/130814508/130814508.html#abirami+andhadhi+slokam
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cdb.bin
7f009808a9ab285e6e15363cbd235ec3f1c1bfb449760aa50ee8aeeb5c6c2052		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CDB 16912 bytes
font_01_sfnt_off00006cd9.bin
dc4ef140040bd9a29001019dabe614b09b306e9b13dffea837dbeac5765d7a07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD9 8236 bytes

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