Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff7a8156c606ba1…

MALICIOUS

PDF

43.1 KB Authoring application: pstoedit
MD5: eec98078809189e77b0d541fbc9271fe SHA-1: 7378cf4ed3221cde18fb3214d09657149de188ba SHA-256: 9ff7a8156c606ba14c21a129c311f4434c4d46372fc1639420e8af5156c2fef6
142 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple URLs pointing to other PDF files, indicating a link-based distribution or phishing campaign. The document body text, though partially obfuscated, mentions a 'Bose micro soundlink review' and includes a callback lure pretext, suggesting a social engineering attempt to direct users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports the phishing and potential malware delivery intent.

Heuristics 4

  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://socialbutterflyslp.com/uploads/1/3/0/4/130488754/nugoxugizaxod.pdf
    • http://ctmpropertymanagementsc.com/uploads/1/3/0/3/130323515/500586bc.pdf
    • http://puertoricandj.com/uploads/1/3/0/6/130604635/a04f2b26663d.pdf
    • http://primpeffect.com/uploads/1/3/0/3/130379133/vutifibolipulu-fasewuwa.pdf
    • http://myexpatsipp.com/uploads/1/3/0/3/130323407/nifed-vatibenojomew.pdf
    • http://zesuv.lefkiano.com/uploads/2020/01/29/gidarabix.pdf
    • http://minerup.com/uploads/1/3/0/5/130589400/24a646b72b00.pdf
    • http://thecorporatecounselor.com/uploads/1/3/0/6/130639740/130639740.html#bose+micro+soundlink+review

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001180.bin
8f733f71958988176733c4687072b6b2b5ec4443628dd7d34645532ffd9835b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1180 8508 bytes
font_01_sfnt_off000061de.bin
0f23141ba94d37b49c53016ac63a9b008a6ac8e4c4656a8d80e6725f77750189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61DE 16140 bytes

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