Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cde1000a7776d0e…

MALICIOUS

PDF

38.7 KB Authoring application: Nitro PDF
MD5: aa4286d779f593b553a9d4bab836849e SHA-1: f22d4a3d7c1989671de819535f0ac07dd39eb747 SHA-256: 9cde1000a7776d0eeb05655d06311ef2c5ef20a13c6569908dd99341077a0805
150 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing or malicious content delivery mechanism. The critical PDF_SEO_LINK_FARM heuristic indicates a large number of external links, with the primary one pointing to autodiscover.hairbyjacqueline.com. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded document body text, though heavily obfuscated, contains references to IKEA and appears to be a lure, potentially to disguise the malicious links within a seemingly innocuous context. The numerous unknown-reputation URLs suggest a broad campaign to distribute malicious PDFs.

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://autodiscover.hairbyjacqueline.com/uploads/1/3/0/6/130604798/9635741.pdf
    • http://musicalinstrumentswholesale.com/uploads/1/3/0/6/130640232/de71f5b6c0c4dd8.pdf
    • http://dinewithdionysus.com/uploads/1/3/0/2/130289214/lizabasutazajazomowu.pdf
    • http://mizmaggieb.com/uploads/1/3/0/5/130539912/zalavozonumitak_raxaremixe_zativamag_goxinufajanaw.pdf
    • http://vt0.net/uploads/1/3/0/4/130477090/2355943.pdf
    • http://britontheroad.com/uploads/1/3/0/8/130813898/wibinesubezefopuror.pdf
    • http://www.rochellrosecreative.com/uploads/1/3/0/8/130874162/2588347.pdf
    • http://breathingzonetech.org/uploads/1/3/0/3/130379145/1213988.pdf
    • http://b-kool.com/uploads/1/3/0/4/130488888/03caaa.pdf
    • http://pixelsxblocks.com/uploads/1/3/0/7/130776712/jixumosidotibonukoso.pdf
    • http://dallal.info/uploads/1/3/0/3/130379415/7816923.pdf
    • http://mossvalewellbeing.com/uploads/1/3/0/5/130545742/a79f185c5f15.pdf
    • http://3086fitness.com/uploads/1/3/0/7/130775539/ruluwizirovipusapizo.pdf
    • http://hlproducts.net/uploads/1/3/0/4/130483329/lifixajox.pdf
    • http://yourjourneywithjenn.com/uploads/1/3/0/5/130544823/zizedofexedonamofu.pdf
    • http://easlinstitute.org/uploads/1/3/0/6/130603824/9029877.pdf
    • http://howtogaragestorage.com/uploads/1/3/0/4/130483400/8650102.pdf
    • http://jiebaoyulechengbeiyongwangzhi.br3h.com/uploads/1/3/0/7/130775172/130775172.html#ikea+home+kitchen+planner+canada
    • http://easlinstitute.or

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038e3.bin
3a844f4d1c6be229a328d686b859bfdc5d824f764e2643bee0a5be1c0be7d3e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38E3 8728 bytes

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