Malicious PDF — malware analysis report

Static analysis result for SHA-256 00a7ec7ac0b31975…

MALICIOUS

PDF

35.6 KB Authoring application: QPDF
MD5: cf677a35f93013b6acb7efc7c1589a16 SHA-1: 7f405d2139dc24aed4cd13b0a79d2833cc5109d2 SHA-256: 00a7ec7ac0b319753ac7fa6418ee642e272c436873b68555a420b755fae38e27
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0, and ML classification strongly indicated maliciousness. The document body itself appears to be corrupted or contains obfuscated text related to medical symptoms, which is likely a lure.

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://jacsmacdl.net/uploads/1/3/0/7/130776262/bilopavupamove.pdf
    • http://aidantinc.net/uploads/1/3/0/4/130488741/babaxepagolamizuru.pdf
    • http://thephotographyshop.net/uploads/1/3/0/4/130490328/sitabik_gulanakumezi_wipiwaroke.pdf
    • http://lingua360.org/uploads/1/3/0/7/130776328/37f1df16.pdf
    • http://capitalpollinatornetwork.com/uploads/1/3/0/2/130274349/21cb4eff225e4a.pdf
    • http://stucadoorsbedrijf-utrecht.nl/uploads/1/3/0/2/130289338/faxupevesube_rutalimo_gimixumexigo_penenezadonika.pdf
    • http://birthdaypresentforboyfriend.net/uploads/1/3/0/4/130477309/508c334d16db80.pdf
    • http://manwithgunband.com/uploads/1/3/0/5/130588442/5fd82026645.pdf
    • http://www.iscreammconecompany.com/uploads/1/3/0/6/130604834/gojepozi.pdf
    • http://towtruckinsuranceus.com/uploads/1/3/0/7/130775274/679a99e8f.pdf
    • http://baycitydance.com/uploads/1/3/0/3/130323632/nasovi_betipur_pifodonovu.pdf
    • http://conmagick.mobi/uploads/1/3/0/5/130590157/nanujezipafixer_negonupumawuw_tudejaravalofu.pdf
    • http://www.insightnewton.com/uploads/1/3/0/3/130379368/4194638.pdf
    • http://www.woodsourcellc.com/uploads/1/3/0/7/130775386/kenux.pdf
    • http://thedeliverator.online/uploads/1/3/0/2/130289426/zefawejebela.pdf
    • http://tradeshowsinarizona.com/uploads/1/3/0/4/130492038/7461958.pdf
    • http://ninja411.com/uploads/1/3/0/4/130488410/5a3349fe8b3f297.pdf
    • http://willslachance.com/uploads/1/3/0/6/130603926/buzajewobu-jazin-jiwuniboroz-moxiduduwup.pdf
    • http://www.fearlesssocial.net/uploads/1/3/0/6/130621917/130621917.html#acute+pulmonary+edema+symptoms

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f7d.bin
76f3958f2fb8884be8ea7c63680d4bc2249b1acfc926f121ab4481fd63a9446c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7D 7076 bytes

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