Malicious PDF — malware analysis report

Static analysis result for SHA-256 78b2dc0905454e82…

MALICIOUS

PDF

66.9 KB Authoring application: Serif PagePlus
MD5: 7c06a27890411d6017196fc6c404ad97 SHA-1: a1a54c707e7ac6f848ead7bc163aa0743c713431 SHA-256: 78b2dc0905454e823f01bcd92e8e8bc9eef3ec1a035b3b2c8848cd0d632f262c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation attack pattern. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious intent. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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://studioprbozeman.com/uploads/1/3/0/6/130621654/begofova_mepimivala.pdf
    • http://nesteam.co.il/uploads/1/3/0/6/130605178/joxanirusumib_wegiviw_terovinumag.pdf
    • http://bepipiroko.sapsan-logistics.com/uploads/2020/01/29/8588974.pdf
    • https://tilezerufad.weebly.com/uploads/1/3/0/4/130489168/2198059.pdf
    • http://tomorrowlogy.com/uploads/1/3/0/4/130492441/genubujanemafu_gojipiwevazede_mejetetedimijav_dejetowag.pdf
    • http://kwpetcarecypress.com/uploads/1/3/0/6/130621383/1c43f.pdf
    • https://vidomaxe.weebly.com/uploads/1/3/0/4/130483457/nomujef-pedikudeke.pdf
    • http://drstellamedicalintuition.com/uploads/1/3/0/5/130551704/kedagano_tupemidutu.pdf
    • http://valdineschroeder.com/uploads/1/3/0/6/130622104/7881b9778.pdf
    • http://tenur.zorfa.icu/uploads/2020/01/28/jomeximofenesojudu.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/7/130739443/130739443.html#achyut+godbole+books+in+marathi

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014e3.bin
b362865204e2818180f17512aa4a5fbbb843d530001fe1c05cb95f9cb72b0941		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E3 9580 bytes
font_01_sfnt_off0000725a.bin
ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195		 pdf-font-stream PDF embedded font (sfnt) at offset 0x725A 16028 bytes
font_02_sfnt_off0000878e.bin
d81d3f072ae6a69ce6cf180ae67d3fdeb130488ae5ca04cabd93c36ee7bd5927		 pdf-font-stream PDF embedded font (sfnt) at offset 0x878E 14300 bytes
font_03_sfnt_off0000aae5.bin
ca9df63ad9cb40efe1509e4f8838bf9837984638ea354bd25f6038962d0edefb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE5 15996 bytes

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