Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4c66c00d71504b5…

MALICIOUS

PDF

39.4 KB Authoring application: Smallpdf Desktop
MD5: 3e1d0b942420681e74422f9b3f9c069d SHA-1: 673cddec55b6ee811667a0b4c1d5868309793ef2 SHA-256: d4c66c00d71504b57f49af7ef7b247d72a0dc1c097309deffb06a162eb4d43ea
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique commonly used in SEO poisoning and phishing campaigns to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. The embedded URLs are likely part of a link farm designed to distribute traffic to various compromised or malicious domains.

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://greenghostheroacademy.com/uploads/1/3/0/6/130604956/f526890e8.pdf
    • http://caseypatrickmurphy.com/uploads/1/3/0/4/130476778/tasikoxesaripig.pdf
    • http://sookeyhairextensions.com/uploads/1/3/0/4/130489144/talawozoj-gozagemupex.pdf
    • http://lilyfairgifts.com/uploads/1/3/0/5/130550854/pipeba.pdf
    • http://anchorchurchelpaso.com/uploads/1/3/0/4/130476168/gujawiwitatedagof.pdf
    • http://kerrydavies.net/uploads/1/3/0/5/130590029/ea264b5e24.pdf
    • http://banjolele.net/uploads/1/3/0/6/130621143/9371936.pdf
    • http://triosimplant.com/uploads/1/3/0/2/130289620/30a0dfd30e.pdf
    • http://joshcookrealtor.com/uploads/1/3/0/4/130435990/fimewa_rorofosolakilab_powomuzokude_tagimilexusak.pdf
    • http://crestoncommunitygardens.org/uploads/1/3/0/5/130589182/parugek-lubebonagabig-wavenonejixo-zufewufu.pdf
    • http://www.centralcoastshows.com/uploads/1/3/0/5/130550876/588ba14851af2.pdf
    • http://teckell.net/uploads/1/3/0/4/130489019/govesijazax.pdf
    • http://startuptibet.com/uploads/1/3/0/7/130739150/peserofefi_vibenajili_rodaxamiv_wutata.pdf
    • http://southbridgewbc.devsite-1.com/uploads/1/3/0/6/130604723/130604723.html#assistant+property+manager+job+description+resume
    • http://triosimplant.com/uploads/1/3/0/2/130289620/30a0dfd30e.pd

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003123.bin
5de8bcceec55ab603b2c0cfe433a52ea04b3557b90d0662b784181ba038e07c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3123 4096 bytes
font_01_sfnt_off00004068.bin
bd2dd31e53b77872b7beec3d99fd44bf2561ef071debaa03c0fe7ca3b82a01e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4068 8032 bytes

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