Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba9cafaec19ff6fb…

MALICIOUS

PDF

39.4 KB Authoring application: Nitro PDF
MD5: 48a60516b67855718faddb7678287911 SHA-1: 1ba3dc9d28f176d66463d11c038399eb823a6401 SHA-256: ba9cafaec19ff6fb9ea4e2998b899887b1b61066cc8e7a28f1ab172d9f9b6066
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and the 'PDF_SEO_LINK_FARM' heuristic strongly indicate a malicious intent to redirect users to potentially harmful content. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam pretext, further reinforcing the malicious nature of the document.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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 https://zizapadan.weebly.com/uploads/1/3/0/3/130323633/pububosuji.pdf
    • http://mosaicolearning.com/uploads/1/3/0/6/130639573/jafibutetivut.pdf
    • http://bij.rektes.tech/uploads/2020/01/27/mopilalupuwekovunida.pdf
    • http://wusibivono.galiciamotor.net/uploads/2020/01/28/sikipakuzinexa-pebosejo-lisowonajofet-xozokowawabaguk.pdf
    • https://wuwanemituniwim.weebly.com/uploads/1/3/0/2/130289493/didawefisinuwu_pitulovem_zimek_xapulixenutus.pdf
    • https://jameteru.weebly.com/uploads/1/3/0/2/130289310/5237847.pdf
    • http://lijamabiv.oksustav.pw/uploads/2020/01/29/worofiwotupizi_sunal_piperewafav.pdf
    • http://wofu.service-dnr.ru/uploads/2020/01/27/sapizu.pdf
    • http://leannephilip.com/uploads/1/3/0/4/130435962/woxidazinefur-fenekadefisera-wakusaberedipo-vavuzogetuk.pdf
    • http://zat.djpschool.com/uploads/2020/01/28/zanaxexulisi.pdf
    • http://kidsandcaregivers.org/uploads/1/3/0/4/130477414/fibafew-wavanimi.pdf
    • http://tax.remont-msk4.icu/uploads/2020/01/28/215478.pdf
    • https://xonuwasipi.weebly.com/uploads/1/3/0/4/130435601/vemilelax_jugopozajozasu_ruvemuja_kituvenemixuvev.pdf
    • http://finresult.com/uploads/2020/01/27/gawujapulogi.pdf
    • http://sunsetsailkeywest.net/uploads/1/3/0/4/130435925/kedatokojabew_rurifugu_vunusadenadarul.pdf
    • http://objectpages.com/uploads/1/3/0/2/130289354/lifomifegumuku.pdf
    • http://natbayley.com/uploads/1/3/0/6/130605077/1727702.pdf
    • http://veromowifo.funblog.online/uploads/2020/01/27/zaxavuvadojukewew.pdf
    • https://delibeduto.weebly.com/uploads/1/3/0/3/130313378/8f7a536.pdf
    • http://oncobiotek.com/uploads/1/3/0/5/130589186/b63545cf64.pdf
    • http://romelocaltourguides.com/uploads/1/3/0/4/130488994/71361913.pdf
    • https://wasubobopaxuriz.weebly.com/uploads/1/3/0/6/130604281/mubagunesebatixe.pdf
    • http://woodlandstuition.com/uploads/1/3/0/5/130588575/130588575.html#perspex+sheet+cut+to+size+near+me

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001752.bin
efeb9d017f816b96b0066bf1bdf67399d7bfaeaaad109cdab1b290047d4e9469
pdf-font-stream PDF embedded font (sfnt) at offset 0x1752 8312 bytes