Malicious PDF — malware analysis report

Static analysis result for SHA-256 22fdfeb2d188cab9…

MALICIOUS

PDF

52.4 KB Authoring application: Serif PagePlus
MD5: 64b470d3aaa7651fa6cda06b71a1a2f5 SHA-1: c449a086ae6ea95c405468e267da6d1fb0fe721d SHA-256: 22fdfeb2d188cab9242ede16fa181c790bc0af0c60db8a39e5ebe32ba476b539
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted across numerous domains. This behavior is indicative of a link farm designed to manipulate search engine results or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://kopib.osteosys.org/uploads/2020/01/28/sekulisaporivotax.pdf
    • http://bevurag.youmindpower.win/uploads/2020/01/28/moxipi-viseduse.pdf
    • http://nimixoj.support-copyrights-100362019.info/uploads/2020/01/27/5882575.pdf
    • http://israel-civilian-k9-unit.org/uploads/1/3/0/3/130379063/sotarotizotibudosi.pdf
    • http://thedecoratorseye.com/uploads/1/3/0/4/130435649/f3da096410c4.pdf
    • https://tafozisebu.weebly.com/uploads/1/3/0/5/130545173/bizebopufegifi-puleli.pdf
    • http://zorfa.icu/uploads/2020/01/28/zegipevujate-bimofegemelute-kaguretidemopof-liwijemob.pdf
    • http://christchurchportland.org/uploads/1/3/0/4/130476573/fazaw_putedikuvawe_namadugorinapo.pdf
    • http://glam24beautybar.org/uploads/1/3/0/3/130323900/fufifologabegeb.pdf
    • http://masuza.hotelimperiya.ru/uploads/2020/01/29/0e722.pdf
    • http://mickrokredit.loan/uploads/2020/01/28/8803658.pdf
    • http://derolu.pcigra.ru/uploads/2020/01/27/5326499.pdf
    • http://thebarbelleclub.com/uploads/1/3/0/6/130621856/9927c760e4c83.pdf
    • http://naziz.womens-news.ru/uploads/2020/01/28/1112037.pdf
    • http://facileglutenfree.it/uploads/1/3/0/6/130604088/vafunolel.pdf
    • http://fexi.csxmorney.com/uploads/2020/01/27/8f6e18db67bb057.pdf
    • http://mysmileprogram.com/uploads/1/3/0/2/130289211/tazutulujajojalese.pdf
    • http://guidedinsights.org/uploads/1/3/0/4/130436282/72d3ba09bea36d.pdf
    • http://oasisinhollywood.weebly.com/uploads/1/3/0/6/130621210/kevineg-zugafatubev-tezukezesaji-peredubadares.pdf
    • https://velebujanegutib.weebly.com/uploads/1/3/0/5/130588937/tizikaxufavazak-dinidesagav.pdf
    • http://9thwonderco.com/uploads/1/3/0/6/130639962/2779246.pdf
    • http://0406shopps05.fun/uploads/2020/01/29/vivulof_dipor_mokedujidoso_bilokavukumef.pdf
    • http://vit.tht-premiere.online/uploads/2020/01/28/aea167c.pdf
    • https://vunigemojoj.weebly.com/uploads/1/3/0/5/130542935/goxafil.pdf
    • http://airporti10businesspark.com/uploads/1/3/0/6/130604878/nazobapuwufu_zizigu_zomuwotosiboji.pdf
    • http://pameladirnberger.com/uploads/1/3/0/2/130289336/130289336.html#whatsapp++latest+version+apk
    • http://airporti10businesspark.com/uploads/1/3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001039.bin
0161c6c32e74459cfb5d0d1ce124e5633c14b6058c88bafd27ac768acd3389c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1039 8788 bytes
font_01_sfnt_off00008ce0.bin
3e962ab9f61a222ebbaf70e2182fe1582b2206e574255ca73d6531393a2f5ea0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE0 3408 bytes