Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e444f372a13a5b9…

MALICIOUS

PDF

36.9 KB Authoring application: Smallpdf Desktop
MD5: 47da06b45c779e854d730b755561d238 SHA-1: bfaf8db3fad56e48f71147da07c312bdd9abcbef SHA-256: 3e444f372a13a5b9e697768ca95bc8d4126bc3bdb3dbf038dbf0ca6196b97587
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, indicating a link farm designed to redirect users to malicious sites. The document body contains garbled text and what appears to be a reference to 'Diagnosis of acalculous cholecystitis', which is likely a lure. The primary attack pattern involves leveraging these links for phishing or malware delivery.

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://ohioawnings.com/uploads/1/3/0/7/130776249/vilogidifigivipesit.pdf
    • http://fuckpad.com/uploads/1/3/0/4/130435851/kinizuximobep.pdf
    • http://mistress-death.com/uploads/1/3/0/2/130289415/a6ddb2203746b45.pdf
    • http://haleyelizabethfish.com/uploads/1/3/0/3/130313741/5239125.pdf
    • http://gabrielandgavin.com/uploads/1/3/0/4/130478307/tiwisugiz.pdf
    • http://www.lovelustboudoir.com/uploads/1/3/0/4/130435881/nuratop.pdf
    • http://catskillsupplyco.com/uploads/1/3/0/6/130604938/firizogezugala.pdf
    • http://rtknowhere.com/uploads/1/3/0/7/130775260/1650184.pdf
    • http://breathmark.org/uploads/1/3/0/6/130620492/7577807.pdf
    • http://obediencedogtrainingomaha.com/uploads/1/3/0/7/130739233/gerinejetomiv_xomumaka.pdf
    • http://acqrealty.com/uploads/1/3/0/3/130323437/5b53246.pdf
    • http://maleskincareblog.com/uploads/1/3/0/7/130738723/6502242.pdf
    • http://belladesgagnes.com/uploads/1/3/0/7/130739893/lufijugifosifejula.pdf
    • http://chinatmz.com/uploads/1/3/0/4/130489054/1785155.pdf
    • http://nashvillemobilepetgrooming.com/uploads/1/3/0/5/130543074/xojogikofafa.pdf
    • http://workcopi.com/uploads/1/3/0/3/130323789/16657.pdf
    • http://sync-cars.com/uploads/1/3/0/6/130620528/tobupiv_juwefusupubuno.pdf
    • http://axewoodwork.com/uploads/1/3/0/6/130639516/ea3628.pdf
    • http://tauroafarmandwildexperience.com/uploads/1/3/0/2/130272355/kodavove.pdf
    • http://73forms.com/uploads/1/3/0/6/130604098/b94c6c52e.pdf
    • http://canninfo.us/uploads/1/3/0/2/130287894/pazoka.pdf
    • http://moveonidiomes.com/uploads/1/3/0/3/130313390/bavigep.pdf
    • http://sta-66-99-58-197.ladse.org/uploads/1/3/0/3/130313426/130313426.html#diagnosis+of+acalculous+cholecystitis
    • http://canninfo.us/uploads/1/3/0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fcf.bin
1e82e6c915902ab2bb403366baf47978463ca4d387c681acdb455b34793cce7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCF 7576 bytes

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