Malicious PDF — malware analysis report

Static analysis result for SHA-256 797726ab61ec3d6d…

MALICIOUS

PDF

30.8 KB Authoring application: GIMP
MD5: 88f957bc43dee44fe4dce7963d4caf74 SHA-1: 910210eec19e92bb796219f558d46cca99815337 SHA-256: 797726ab61ec3d6dca5dc202c81c81bd14efdd2aa8174396115f0d1c44ccda6a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF documents, a technique often used for SEO spam or to distribute malicious content. The ClamAV heuristic also flags this as a phishing-related malware. The document body, though heavily corrupted, contains references to 'Ecological footprint analysis worksheet answers', suggesting a lure related to educational or environmental topics.

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://sonshineflowersandgifts.com/uploads/1/3/0/4/130476205/4286150.pdf
    • http://ourladywillowbrook.com/uploads/1/3/0/5/130542781/suxanekikevewe.pdf
    • http://susanaamaral.com/uploads/1/3/0/6/130605166/zetagawanogovuf.pdf
    • https://lovezudofef.weebly.com/uploads/1/3/0/4/130483294/6855039.pdf
    • http://alimosphere.com/uploads/1/3/0/4/130435786/7711031.pdf
    • http://gadgetgrump.com/uploads/1/3/0/6/130621084/1a8c5aa68573.pdf
    • http://coreydennison.net/uploads/1/3/0/3/130379596/kokumagikekad.pdf
    • http://murrietasalvationarmy.org/uploads/1/3/0/6/130620796/8008464.pdf
    • https://seripejivuvelo.weebly.com/uploads/1/3/0/4/130477234/tenokomusugajawi.pdf
    • http://257bennettstreet.com/uploads/1/3/0/7/130738887/vetijazesodese_pevorojujo_dojagukutig.pdf
    • http://stageworkslouisiana.com/uploads/1/3/0/5/130544898/zorexasuxososunemo.pdf
    • http://multistreams.com/uploads/1/3/0/4/130477110/130477110.html#ecological+footprint+analysis+worksheet+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012d3.bin
1a2d00215d7b7aa091182163472655305e7dac86089dbb60b8b689fa1b0047ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D3 7800 bytes

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