Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09f9e08853ebc56…

MALICIOUS

PDF

36.6 KB Authoring application: GIMP
MD5: 3b91d07b6c771a3b246d40f8c3caf258 SHA-1: 1196a0ff2f3ed1d88b22bd601284d95c73df4d03 SHA-256: f09f9e08853ebc56cbfb14b731e7aca4fe91aac01acb432892c397e39536d2b9
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of embedded links, with the heuristic PDF_SEO_LINK_FARM firing. One of these links points to an IP address, as detected by PDF_URI_IP_LITERAL. The ClamAV detection also flags this as phishing-related. The document body itself is heavily corrupted and contains a mix of legitimate-sounding text and what appears to be junk data, but the embedded URLs are the primary indicators of malicious intent.

Heuristics 4

  • 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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://whatthehula.org/uploads/1/3/0/5/130550682/jadozidozij_bedelaj_gexalalusefa.pdf
    • http://xexu.chelny-master.ru/uploads/2020/01/28/saradifejobuj_dubumabumip_daxoweteset.pdf
    • https://sepujulapo.weebly.com/uploads/1/3/0/5/130588731/245440.pdf
    • http://nliaustralia.com/uploads/1/3/0/4/130436365/30cdcbc38d11c.pdf
    • http://duvujovo.bilety-v-kreml.ru/uploads/2020/01/29/piverorudaw.pdf
    • http://plantdrpeter.com/uploads/1/3/0/5/130539315/kogibisusu_rajuxo.pdf
    • http://stopgossipping.com/uploads/1/3/0/4/130488195/xurak.pdf
    • http://mkayinthemountains.com/uploads/1/3/0/2/130271161/7354235.pdf
    • http://evangelismfireministries.net/uploads/1/3/0/5/130544446/finoruvinujofub_xokapotinegim_fizafafiwa_dugufuwujasod.pdf
    • http://netdevl.com/uploads/1/3/0/6/130639863/lixipijadepe.pdf
    • http://rodizuga.womensbeatuy.net/uploads/2020/01/28/sinemevezigudo-xidaz.pdf
    • http://mrchadleypw.ca/uploads/1/3/0/6/130620581/gomepeluj.pdf
    • http://luk.trcturbo.ru/uploads/2020/01/29/505d73.pdf
    • http://lister-hosedoctor.com/uploads/1/3/0/5/130550882/neroratudupusijode.pdf
    • http://95.217.124.65:80/uploads/2020/01/29/53d0c8e4891.pdf
    • http://aechoreography.com/uploads/1/3/0/2/130289214/9429a3.pdf
    • http://y4xtravel.com/uploads/1/3/0/2/130288577/pafisexekozodu.pdf
    • http://rachaelmaephotography.com/uploads/1/3/0/4/130488100/6df8741c.pdf
    • http://mydigitalpassport.weebly.com/uploads/1/3/0/5/130551775/ziziganuxebatu.pdf
    • http://brokenglass.website/uploads/1/3/0/6/130604049/940e9fce503dbe.pdf
    • http://sacrophonia.com/uploads/1/3/0/6/130603918/bovoma.pdf
    • http://jibat.novostroyki-barnaul.ru/uploads/2020/01/29/tikejikasodaj.pdf
    • http://lunchbox-gourmet.com/uploads/1/3/0/4/130476974/befajezovelajir_pumibaruz_buzogoworafat_bumezifabo.pdf
    • http://ve9tca.weebly.com/uploads/1/3/0/6/130639910/f732b8c64a6d.pdf
    • http://deltaixsecurity.com/uploads/1/3/0/4/130476144/927b9e.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/2/130272506/130272506.html#canadian+solar+inverter+datasheet
    • http://lunchbox-gourmet.com/uploads/1/3/0/4/130476974/befajezovelajir_pumibaruz_buzogoworafat_

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001807.bin
634dab40e189e0e805b8c3ca7fd080fb94fc204f6cecfa418c6d1e98fba977c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1807 8320 bytes