Malicious PDF — malware analysis report

Static analysis result for SHA-256 1942b1ecea0bcb74…

MALICIOUS

PDF

40.8 KB Authoring application: GIMP
MD5: 9e2983ccb3ed71b678a726091451d7b0 SHA-1: c8dfe6cb212d78d06e82a2dcced712c89bdcabbe SHA-256: 1942b1ecea0bcb74890b0043594e23819be9ef33b959850c9d72d960b6b5f6c8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://hooly.org/uploads/1/3/0/4/130483118/vixamonaf_kupudoka_xiwimoxid.pdf
    • http://hippychic.us/uploads/1/3/0/5/130551198/6846782.pdf
    • http://counterpointservices.org/uploads/1/3/0/7/130739286/jesokezim-putuf-mutupa.pdf
    • http://rentalsandroommates.net/uploads/1/3/0/4/130483558/kikebume-dutupikazexexu.pdf
    • http://natalieberry.net/uploads/1/3/0/4/130436450/mobiragipigi_dunubug_kediwiva.pdf
    • http://readytech.net/uploads/1/3/0/7/130776385/0c7b11bc2aa4e.pdf
    • http://mail.erichschuett.com/uploads/1/3/0/7/130775690/acbcbdf6b.pdf
    • http://nataliekfitness.com/uploads/1/3/0/7/130739029/tipux-fuwax-noviganidi-piwosojoba.pdf
    • http://thechromaphones.com/uploads/1/3/0/7/130739573/fosomudirek.pdf
    • http://thehandmadehydrangea.com/uploads/1/3/0/2/130273573/peroxuxewawati_vunodidofuf_papixusutub_rapesoxoxog.pdf
    • http://pikminlink.com/uploads/1/3/0/4/130435695/tedelotazonabat-lovogedijigi-dopim.pdf
    • http://durtygirlcoffeescrub.com.au/uploads/1/3/0/7/130776659/2392317.pdf
    • http://thehealthcoach.co.nz/uploads/1/3/0/4/130476066/78f48d2a90473.pdf
    • http://www.nance2019capstoneproduct.com/uploads/1/3/0/6/130620594/9ef6d55bdb2772d.pdf
    • http://ntwc.group/uploads/1/3/0/7/130775735/lorabo_dixedo.pdf
    • http://mycpfc.net/uploads/1/3/0/7/130775594/dadino.pdf
    • http://capieducandoparadejarhuella.com/uploads/1/3/0/6/130604020/5e0809eea84e6d4.pdf
    • http://conradarchitectureanddesign.com/uploads/1/3/0/2/130289495/7130975a7.pdf
    • http://mundofeliz.es/uploads/1/3/0/8/130814110/15f17257.pdf
    • http://0978387520.com/uploads/1/3/0/4/130435978/547223.pdf
    • http://www.springlakeengineering.com/uploads/1/3/0/6/130639766/rufiwodisafuva_tovoxo.pdf
    • http://acufirstchoice.com/uploads/1/3/0/5/130588735/jiweloxo_xinopon.pdf
    • http://shapeitup.fitness/uploads/1/3/0/2/130288542/roferavi.pdf
    • http://unicoiwinetrail.com/uploads/1/3/0/5/130544494/130544494.html#polycythemia+in+neonates+slideshare
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fontawesome.iohttp://fontawesome.io/license/
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027db.bin
7f00688a7fa1435ce172dcb840d0263443ffd2a42c0a0825bd4151cb67b82d29
pdf-font-stream PDF embedded font (sfnt) at offset 0x27DB 2696 bytes
font_01_sfnt_off000030cd.bin
5ddbabde4f9162c9e13a7aee55e73ae66c97c61713dc817702a00ccc7bff947f
pdf-font-stream PDF embedded font (sfnt) at offset 0x30CD 1760 bytes
font_02_sfnt_off00003ba9.bin
b0ffd7cc8a12415b47752295aa2d0336b428d81f2da60895354feaeaa67adac8
pdf-font-stream PDF embedded font (sfnt) at offset 0x3BA9 8052 bytes