Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe22b15f17addf3…

MALICIOUS

PDF

68.7 KB Authoring application: Serif PagePlus
MD5: dde29159f156891e7467ae1883a5b8d1 SHA-1: db96870fcd8ce8d3e6da40fb50f11da36105cefd SHA-256: 6fe22b15f17addf3946bf8225c13a8c0f45a850c07fe72e22fd1b3426b66d237
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF file contains a mass of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to numerous PDF files hosted on various domains, suggesting a coordinated effort to distribute content or manipulate search engine results. The ML classifier and ClamAV also flagged this file as malicious, reinforcing the suspicious nature of the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://rosslandry.com/uploads/1/3/0/5/130539048/puvunem.pdf
    • https://lirenatonef.weebly.com/uploads/1/3/0/3/130313035/497fa02f.pdf
    • http://nipajuzi.stroy-city.online/uploads/2020/01/29/5118371.pdf
    • http://xekumudit.kasperplus.ru/uploads/2020/01/28/5699391.pdf
    • http://oakleykambel.com/uploads/1/3/0/2/130271085/jareziki-konosazeba-nejojum-silol.pdf
    • http://novific.com/uploads/1/3/0/6/130621859/zafazodutoju-motafonilenodu-lozul-zozeletab.pdf
    • http://juk.lada-detail.su/uploads/2020/01/28/9098151.pdf
    • http://nazcamp.org/uploads/1/3/0/4/130435569/8963387.pdf
    • http://xuzupo.amirhanov.com/uploads/2020/01/28/d298cd8cc5db.pdf
    • http://measuring-length.com/uploads/1/3/0/4/130492441/pifari-vanuvetez-nikadowu-famovowusipudir.pdf
    • https://bawobuzodalib.weebly.com/uploads/1/3/0/3/130379219/teruwales_bijebinakas_safupobulo_rorutepitiv.pdf
    • http://thebestpillowever.com/uploads/1/3/0/4/130489023/litironabawimozirid.pdf
    • http://seniors1stfinancial.com/uploads/1/3/0/4/130436390/2271061.pdf
    • http://cardillelab.weebly.com/uploads/1/3/0/6/130604366/e268c87.pdf
    • http://apologiesfrommen.com/uploads/1/3/0/2/130287428/darofep-telijarefet-zumumepuw-xuxipozevutin.pdf
    • http://ccpstl.org/uploads/1/3/0/2/130291769/vonosa.pdf
    • http://fewijox.race-charter.ru/uploads/2020/01/28/dumoxaretiwe_gajukitufivibez.pdf
    • http://nysmaplepartridge.com/uploads/1/3/0/4/130436285/rusori.pdf
    • http://bramvanroyphotography.com/uploads/1/3/0/5/130539726/wopazuj_fuwuvero_rugov.pdf
    • http://realfamilycamping.com/uploads/1/3/0/4/130483842/lixotix_korefefivota_gukerabesas_dexikux.pdf
    • https://zuzewozogofed.weebly.com/uploads/1/3/0/4/130435679/wasakutipewori_nupanunozor_pusul.pdf
    • http://midogule.tandifac.tech/uploads/2020/01/28/rupavobixez_fawuza_fadojufotis_lobopi.pdf
    • http://dakotanaturalgoods.com/uploads/1/3/0/3/130313053/6176577.pdf
    • http://clucktruckportland.com/uploads/1/3/0/5/130588857/130588857.html#define+affirmative+action+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000018b6.bin
52d548a64ee5a267c6e504620ff2f862ea9c2765f3d9e7e589f01cf40497e1ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18B6 8828 bytes

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