Malicious PDF — malware analysis report

Static analysis result for SHA-256 548c03200587ea1a…

MALICIOUS

PDF

40.6 KB Authoring application: OpenOffice Draw
MD5: 3068386d03030f63c6279fd4e11e330c SHA-1: 69858bb494ae9cc853fc3ceac85b13a88ec562a5 SHA-256: 548c03200587ea1a7afc7e58a85c806633b6c1b0321e6437055923a68c56bf71
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to other PDF files hosted on various domains, indicating a link farm or redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, but the primary attack vector appears to be the mass distribution of external links.

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://wunderkammer.space/uploads/1/3/0/8/130814279/3176665.pdf
    • http://insightosteopathic.net/uploads/1/3/0/6/130639023/gusodepinu.pdf
    • http://decheapertrash.com/uploads/1/3/0/5/130588954/newumigabopo_fowuwaponigog.pdf
    • http://norighttokill.org/uploads/1/3/0/8/130813448/wefixibobu-mogefa-fisib.pdf
    • http://medicinehatheat.com/uploads/1/3/0/8/130813714/9124113.pdf
    • http://dumarsinc.com/uploads/1/3/0/6/130603905/likoj.pdf
    • http://gardenkitchen.us/uploads/1/3/0/6/130639138/xuninixarebiwibil.pdf
    • http://natureswonders.net/uploads/1/3/0/7/130775372/413babce7cc0c3d.pdf
    • http://cancerblingshop.com/uploads/1/3/0/7/130776022/malutakodana-jagabikul.pdf
    • http://prestigeeminence.com/uploads/1/3/0/5/130588286/4244328.pdf
    • http://bellbookcandle.net/uploads/1/3/0/3/130313595/1863961.pdf
    • http://theinfinitedoorway.ginadianneharding.com/uploads/1/3/0/8/130874360/3c2b9a82cd.pdf
    • http://nacerparaleer.com/uploads/1/3/0/4/130476390/c11685645c7726.pdf
    • http://olares.com/uploads/1/3/0/6/130620965/2303872.pdf
    • http://eliteimagesplus.com/uploads/1/3/0/5/130590153/45fbc.pdf
    • http://bobbiholyoak.com/uploads/1/3/0/6/130604589/wakiwevipujeve.pdf
    • http://ylp2019.com/uploads/1/3/0/4/130483759/5cd5d865e1de535.pdf
    • http://lovehealthservice.net/uploads/1/3/0/6/130605347/takexixe_lujefepefabam.pdf
    • http://bethcyrusmusic.com/uploads/1/3/0/8/130874284/8b3f8.pdf
    • http://befois.com/uploads/1/3/0/2/130288864/zanidafegefifala.pdf
    • http://care-assn.net/uploads/1/3/0/5/130550724/biwis.pdf
    • http://embodyyourbeauty.lynn-gustafson.com/uploads/1/3/0/5/130550930/7229406.pdf
    • http://pierrecauchois.fr/uploads/1/3/0/6/130603814/runaxuminun-sedalakadup-zevofopevujux.pdf
    • http://xinli88wangshangyule.br3h.com/uploads/1/3/0/6/130604110/130604110.html#afcat+2+2018+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cc7.bin
83f8acfa8c88926a83aff8cc2c7ad5202cf6308a731a519a5131e8d16bb05ffe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CC7 7848 bytes

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