Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62679eac156b0aa…

MALICIOUS

PDF

41.7 KB Authoring application: Smallpdf Desktop
MD5: 740ccb3b777f91b9e2fe4dfe45ded30f SHA-1: 3039e3afc5ef4bf206c70c749c9fbd7a504db373 SHA-256: a62679eac156b0aab2db9150b78d46ca68bf5a0d10972ff4e0ed2600d567d606
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, though heavily corrupted, contains fragments of text related to worksheets, suggesting a lure to disguise the malicious link farm.

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://varsitygreekstore.com/uploads/1/3/0/2/130271002/jobedumisor_ribodef_divipaw.pdf
    • http://miralunacraniosacral.com/uploads/1/3/0/2/130272619/9118135.pdf
    • http://4lawsfamily.com/uploads/1/3/0/4/130435839/xeluwapup.pdf
    • https://woxalufijexa.weebly.com/uploads/1/3/0/3/130323151/lezaj-zirofonom-tujagegagopuwef-zukevelofaduf.pdf
    • http://mmedicalgroup.net/uploads/1/3/0/6/130605517/a1501e.pdf
    • http://cmoseleymusic.com/uploads/1/3/0/6/130639824/pumukux_vogefagojed_daxivorev.pdf
    • http://mysmartptt.com/uploads/1/3/0/3/130379243/e0781e.pdf
    • http://fekegid.landwirtmobile.tech/uploads/2020/01/27/mezetefofixegiv-xamijebozex.pdf
    • http://kamconsulting.fr/uploads/1/3/0/2/130272414/lagevelemuladalefu.pdf
    • http://blackmonmarshall.com/uploads/1/3/0/6/130604838/1868414.pdf
    • http://modelmefamous.com/uploads/1/3/0/2/130273987/5034197.pdf
    • http://acupuncturehilohawaii.com/uploads/1/3/0/5/130539155/vujazakud_sawejamure.pdf
    • http://crushinator.com/uploads/1/3/0/4/130483678/zaxitesosin.pdf
    • http://coombesandgabbie.com/uploads/1/3/0/5/130550938/ketetuzonixitozaka.pdf
    • http://nicholasjozaites.com/uploads/1/3/0/3/130323291/5446620.pdf
    • http://cofse.net/uploads/1/3/0/5/130540592/gamufowuwazek-puviba-fifotazegepejij-sufigo.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/6/130604764/130604764.html#possessive+nouns+worksheets+2nd+grade+pdf
    • http://cofse.net/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001562.bin
ff7e7a8bb7058abc3fc1a639907e1b879f34c5475963340882035bd117c486f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1562 8148 bytes

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