Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dfde4e2dd77c284…

MALICIOUS

PDF

50.7 KB Authoring application: GIMP First seen: 2020-09-07
MD5: 044dd3b493e10b25b7dba3290fabc884 SHA-1: 4348242dbeab6542b03e18830d5be932d23222be SHA-256: 7dfde4e2dd77c28423694961569dd024079d7bdaf62abc252099386da444d7e8
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a phishing or malicious content distribution attempt. The SE_CALLBACK_LURE heuristic further indicates a potential phishing pretext, possibly related to billing or security issues. The ML_NYX_PDF_MALICIOUS and ClamAV detections confirm the malicious nature of the file, likely serving as a dropper for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://powerofyourintuition.com/uploads/1/3/0/6/130639239/zanejopanaza_todagopekudoz_soropajezoga.pdf In PDF document text
    • http://greatfallsdj.com/uploads/1/3/0/7/130775411/7528867.pdfIn PDF document text
    • http://www.grants-guardians.org/uploads/1/3/0/8/130873876/1762563.pdfIn PDF document text
    • http://coinmarketsell.com/uploads/1/3/0/6/130639691/gonumidelafexeg.pdfIn PDF document text
    • http://nkfitsquad.com/uploads/1/3/0/3/130323968/7901196.pdfIn PDF document text
    • http://sub2000ati.com/uploads/1/3/0/2/130289629/9afa9d906ab1da2.pdfIn PDF document text
    • http://c-a-k-e-bae.com/uploads/1/3/0/7/130738777/08e6f.pdfIn PDF document text
    • http://cescoequipment.us/uploads/1/3/0/7/130776617/dejotodu.pdfIn PDF document text
    • http://courageblogs.com/uploads/1/3/0/6/130604363/3791578.pdfIn PDF document text
    • http://www.amandaumpierrez.com/uploads/1/3/0/6/130621209/2e3ce08c7d.pdfIn PDF document text
    • http://magicmesopatches.com/uploads/1/3/0/2/130291662/wupik.pdfIn PDF document text
    • http://autodiscover.pdoapparel.com/uploads/1/3/0/4/130476242/pedumif.pdfIn PDF document text
    • http://robertelsner.com/uploads/1/3/0/7/130738487/6883994.pdfIn PDF document text
    • http://netmabrle.net/uploads/1/3/0/4/130435597/9752174.pdfIn PDF document text
    • http://mail.clubmakereurope.com/uploads/1/3/0/5/130551896/679d6a323814.pdfIn PDF document text
    • http://aqnft.salon225.com/uploads/1/3/0/6/130639463/130639463.html#genetic+modification+of+animals+pros+and+consIn PDF document text
🗂 Part of campaign: biztriage.com 8 samples

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28 8448 bytes
SHA-256: 4e57ec103d75366936caf4cdfdc38297c526ee489927684c162d88983dcdef00

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