Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebc29d866e0eb3ac…

MALICIOUS

PDF

46.8 KB Authoring application: Poppler-utils
MD5: 7b8be269076c3a9f3f8622dbb12d4c43 SHA-1: 3a213056ceab07a82c2b6528b081791563eaaad7 SHA-256: ebc29d866e0eb3aca375670e6da41799e4bb500f827390abdc3fd72c2f6a03e3
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique commonly used to obscure malicious intent and distribute further payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection scheme. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of a mass external link farm, indicating the primary purpose is to redirect users to potentially malicious content hosted on numerous 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://ovbeyondtherainbow.org/uploads/1/3/0/6/130621880/ac7109.pdf
    • http://nautifoods.com/uploads/1/3/0/5/130544089/1239800.pdf
    • http://hyperdrivestudio.net/uploads/1/3/0/2/130289242/wojodata.pdf
    • http://binarysv.com/uploads/1/3/0/6/130605164/wemavowof.pdf
    • http://ssh2019.info/uploads/1/3/0/6/130604498/mamon.pdf
    • http://ackman4action.com/uploads/1/3/0/7/130776854/vozijozim.pdf
    • http://www.kmepc.net/uploads/1/3/0/6/130603851/7964684.pdf
    • http://joemathewson.net/uploads/1/3/0/3/130312984/745fc9a5accb.pdf
    • http://mieswholesalemeats.com/uploads/1/3/0/6/130620811/birizoxopubolar-budulemezeb-rubulekufeti-watas.pdf
    • http://konidarisart.com/uploads/1/3/0/4/130488506/8092154.pdf
    • http://bestbudscards.com/uploads/1/3/0/7/130739833/tukepakiwu.pdf
    • http://southamptonwaterpolo.com/uploads/1/3/0/5/130550859/511940.pdf
    • http://wanderingpupil.com/uploads/1/3/0/5/130550898/1776948.pdf
    • http://www.momentumyoutharts.com/uploads/1/3/0/5/130550847/robazusurowofuzi.pdf
    • http://fourfin.com/uploads/1/3/0/7/130775503/4595375.pdf
    • http://www.thomasmoura.com/uploads/1/3/0/5/130543667/4615307.pdf
    • http://lipstickliberalnetwork.net/uploads/1/3/0/3/130324065/3773791.pdf
    • http://kentcleaningservices.net/uploads/1/3/0/8/130874153/bolapemofadudateg.pdf
    • http://harold-stanley-junior.pleasingfood.com/uploads/1/3/0/6/130621100/130621100.html#neurological+disorders+course+and+treatment+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059f0.bin
b27e1c8ca9878bf66ba8fbcbe4288d8de701d1e95ac89c4949fa85fb32c6c801		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F0 8328 bytes

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