Malicious PDF — malware analysis report

Static analysis result for SHA-256 3108797b7ea4a4d4…

MALICIOUS

PDF

247.3 KB Created: 2010-08-15 19:06:28 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: 9e0330ae5166d6a9f421bc653576bc16 SHA-1: 04cc48f2340612de370daf38a0445cbac58b24ec SHA-256: 3108797b7ea4a4d47dc8689f50dd8dee4b56924b3e7b24aab3630e86a145a0b7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes `eval()` and `unescape()` functions, indicating obfuscation and likely malicious intent. The heuristics suggest this script is a payload designed to be executed. The numerous embedded URLs point to external resources, likely for downloading additional malware or phishing content. No specific family could be identified due to the generic nature of the obfuscation.

Heuristics 6

  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://clarkerg.com/iuytre/znkg.php?arg=Inderal+Online
    • http://actualslimeythings.com/jydtre/tamv.php?arg=free+3rd+grade+science+energy+worksheets
    • http://clarkerg.com/iuytre/znkg.php?arg=pharmacy+controlled+subtance+florida
    • http://www.haventeens.com/wordpress/kzds.php?arg=lysine+food+group
    • http://wardrobesandkitchens.com/wordpress/kxng.php?arg=2005+nissan+key+blank
    • http://thucphamchucnangnewlife.vn/kjjhgtte/fsjq.php?arg=How+to+ferment+food
    • http://mcmireport.com/myblog/wsvc.php?arg=safe+dose+pharmacy+indianapolis
    • http://partcctv.com/jhhste/zhgk.php?arg=Ancient+etruscan+food
    • http://www.haventeens.com/wordpress/kzds.php?arg=painted+turtle+hatchling+habitats
    • http://clarkerg.com/iuytre/znkg.php?arg=celebrex+onine+pharmacy
    • http://indianpharmacynoprescription.com/products/general_health/motilium/order/
    • http://clarkerg.com/iuytre/znkg.php?arg=rite+aid+pharmacy+fredonia
    • http://www.shonstromresearch.com/hdtres/xkzp.php?arg=didrex+online+pharmacy
    • http://indianpharmacynoprescription.com/products/eye_care/cyclosporineeyedrops/order/
    • http://www.haventeens.com/wordpress/kzds.php?arg=125+x+125+web+banner+blanks
    • http://www.bionet.vn/mnbgtr/xhqy.php?arg=virtual+sex+flash
    • http://menshealthonlineshop.com/products/men_s_health/sildenafilfluoxetine/
    • http://www.gsocomatt.com/wordpress/nymq.php?arg=website+for+algebra+worksheets
    • http://www.alingua.es/kkgjte/jyvt.php?arg=dog+groomer+supply
    • http://actualslimeythings.com/jydtre/tamv.php?arg=word+meanings+using+context+clues+worksheets
    • http://www.lifewerkz.com/mnbvf/wtpc.php?arg=female+orgy
    • http://www.somethingverynew.com/home/rbhg.php?arg=daily+free+porn+site
    • http://actualslimeythings.com/jydtre/tamv.php?arg=2nd+grade+human+body+worksheets
    • http://partcctv.com/jhhste/zhgk.php?arg=Food+organization+chart
    • http://easley4dps4.com/Top/xgfh.php?arg=food+healthy+store
    • http://easley4dps4.com/Top/xgfh.php?arg=blank+2007+september+calendar
    • http://www.gsocomatt.com/wordpress/nymq.php?arg=maniac+magee+free+worksheets
    • http://www.swiftwaterfarm.com/digg/ztgp.php?arg=Chocolate+food+trends
    • http://www.bionet.vn/mnbgtr/xhqy.php?arg=male+party+hardcore
    • http://mexicanexportpharmacy.org/products/men_s_health/rockit247/order/
    • http://www.getoutofthecold.net/jsgtde/hjsm.php?arg=pharmacy+pediatric+magazines
    • http://clarkerg.com/iuytre/znkg.php?arg=natural+pharmacy+and+healthy+living
    • http://actualslimeythings.com/jydtre/tamv.php?arg=tennis+lessons+painted+desert
    • http://esark.com/lkjhg/tgny.php?arg=Kudler+fine+food+finacial
    • http://www.getoutofthecold.net/jsgtde/hjsm.php?arg=Get+Toprol-XL
    • http://www.swiftwaterfarm.com/digg/ztgp.php?arg=Valine+is+in+what+food
    • http://clarkerg.com/iuytre/znkg.php?arg=pharmacy+packaging+medications+regulations+canada
    • http://mexicanexportpharmacy.org/products/men_s_health/hardonjelly/order/
    • http://www.swiftwaterfarm.com/digg/ztgp.php?arg=Safrit+italian+food
    • http://www.haventeens.com/wordpress/kzds.php?arg=physical+science+study+guides+and+worksheets
    • http://www.gsocomatt.com/wordpress/nymq.php?arg=worksheets+on+prepositional+phrases
    • http://partcctv.com/jhhste/zhgk.php?arg=Wine+and+food+fest
    • http://www.getoutofthecold.net/jsgtde/hjsm.php?arg=Buy+Cipro
    • http://indianpharmacynoprescription.com/products/men_s_health/enhance9/order/
    • http://www.lifewerkz.com/mnbvf/wtpc.php?arg=female+orgasm+position+sexual
    • http://www.gsocomatt.com/wordpress/nymq.php?arg=elementary+4th+grade+worksheets
    • http://www.swiftwaterfarm.com/digg/ztgp.php?arg=Catholic+food+products
    • http://www.bionet.vn/mnbgtr/xhqy.php?arg=new+girlfriend
    • http://mcmireport.com/myblog/wsvc.php?arg=vitamins+pharmacy+grade
    • http://mexicanexportpharmacy.org/products/cholesterol/vytorin/order/
    +48 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000bc59.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xBC59 264072 bytes
embedded_pdf_script_0003dc77.bin
329d48de61f253407347626ba0fcea44888cec54795966f1cc63cbc6f83fe8c4
pdf-embedded-script PDF decompressed stream script payload at offset 0x3DC77 253253 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long hex-escaped blob(s).