Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1f765e563c88c7…

MALICIOUS

PDF

38.2 KB Authoring application: PDF Studio
MD5: ce8109b035a5b488c3f9fb539ec951a1 SHA-1: 0ad72722e9cbfcfd9789cd20758152275b46303a SHA-256: fb1f765e563c88c7300c78929c97f81c49b4a168395e324b1b72f4ab8dfa28df
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of numerous external links, with 'paginarama.com' being a dominant host.

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://paginarama.com/uploads/1/3/0/4/130488696/b8e05.pdf
    • http://stagecinteriors.net/uploads/1/3/0/6/130639656/07bfbc9.pdf
    • http://sagerecoverystaff.com/uploads/1/3/0/5/130589338/jenesebuder.pdf
    • http://gregwcraft.com/uploads/1/3/0/2/130289479/jazej_roxofawi_tonivige_lilasigu.pdf
    • http://mywholelifeisshirts.com/uploads/1/3/0/6/130622023/2999303.pdf
    • http://konnektuk.com/uploads/1/3/0/7/130775797/xararokaji.pdf
    • http://sales15-ip-phone.pleasingfood.com/uploads/1/3/0/8/130813756/1186a4f2.pdf
    • http://debbieelliswatercolours.com/uploads/1/3/0/2/130288751/dixagafinekiwar.pdf
    • http://popuppads.com/uploads/1/3/0/6/130605076/9104623.pdf
    • http://clucktruckportland.com/uploads/1/3/0/5/130552016/6905308.pdf
    • http://videoglyph.org/uploads/1/3/0/4/130489669/2021359.pdf
    • http://collabsys.com/uploads/1/3/0/7/130738499/waminuratu.pdf
    • http://mynxbeautybar.ca/uploads/1/3/0/6/130639821/ruzarakimeto.pdf
    • http://theyarn.blog/uploads/1/3/0/5/130589299/rejimasimitebukirez.pdf
    • http://amberhis.com/uploads/1/3/0/4/130483123/zavunopegag.pdf
    • http://nomadvapors.net/uploads/1/3/0/5/130542859/pubolegifim-poxirig-figatonuleve.pdf
    • http://photostudiescollege.net/uploads/1/3/0/6/130603696/9008119.pdf
    • http://deirdreswinson.com/uploads/1/3/0/4/130435746/675975.pdf
    • http://terraholdinggroup.com/uploads/1/3/0/4/130490833/834253.pdf
    • http://nicolekruzel.com/uploads/1/3/0/5/130541688/dotete-fedowuvaxi-butabapu.pdf
    • http://interview-tools.net/uploads/1/3/0/8/130874248/vunorazu.pdf
    • http://brave.therapyprime.com/uploads/1/3/0/7/130776066/add56e.pdf
    • http://umotivemove.com/uploads/1/3/0/5/130589057/jekasabanojifuv.pdf
    • http://striba.net/uploads/1/3/0/5/130541641/1694595.pdf
    • http://azpoloassn.com/uploads/1/3/0/7/130740192/zexanara_tagebinabi_kepebosudepoji_terivebawe.pdf
    • http://atasteofjamaicaandmore.com/uploads/1/3/0/8/130873962/130873962.html#jurnal+internasional+akuntansi+syariah
    • http://debbieelliswat

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000319e.bin
55ee344dc82db98f3ed657e7535c5179194a78d22521e58c7aaf707e8b7e005b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x319E 7660 bytes

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