Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4de5f0998971a69…

MALICIOUS

PDF

44.0 KB Authoring application: Karbon
MD5: 871523197f4a5ed704405ccd0f7ad661 SHA-1: 1aeae3b15c2424322bac158e979b8d3301e5724a SHA-256: a4de5f0998971a6932fb331ee73e0c5239a65835686039b36ce71618f9b6fe0f
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 links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification. The document body text appears to be corrupted or truncated, preventing a more detailed analysis of its 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://www.creationsanddelights.com/uploads/1/3/0/5/130550714/87ae292d.pdf
    • http://mortgagesolutionexperts.com/uploads/1/3/0/4/130477028/49d16.pdf
    • http://flyingcrabcrap.com/uploads/1/3/0/4/130483539/zufute_nanimolomodan_pekupijobemeg_vilikaxi.pdf
    • http://dunawaysurveying.com/uploads/1/3/0/5/130538833/6115249.pdf
    • http://mommasnow.com/uploads/1/3/0/6/130620393/folumesilale_takewejegej.pdf
    • http://mspuppies.com/uploads/1/3/0/5/130539048/2801161.pdf
    • http://mail.parkavenueparties.com/uploads/1/3/0/6/130621683/4942368.pdf
    • http://mail.hebron-umc.org/uploads/1/3/0/6/130620334/sadofuvegi.pdf
    • http://fabcraftinc.com/uploads/1/3/0/5/130542755/fa90e9819.pdf
    • http://aspireimmigration.ca/uploads/1/3/0/2/130272092/99d399a240.pdf
    • http://connectedsystems.io/uploads/1/3/0/3/130379380/86eb10b24e363.pdf
    • http://songlianinc.com/uploads/1/3/0/4/130483480/29d30d6da9.pdf
    • http://www.goodcare.website/uploads/1/3/0/7/130775612/9b1376.pdf
    • http://mibisho.net/uploads/1/3/0/6/130621819/27dd1c57df5.pdf
    • http://fleettrackandfield.com/uploads/1/3/0/6/130603954/wubakuwaxabixar-nitew-zezinatenevaf.pdf
    • http://otf.brdge.org/uploads/1/3/0/8/130874160/130874160.html#download+al+quran+latin+dan+terjemahan+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035db.bin
e03fa7585b7f29bd1069d0546e925131dfb447923edb5d56e6ee5cf2b390c22f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35DB 16900 bytes
font_00_sfnt_off00002cbb.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBB 2652 bytes
font_02_sfnt_off00005073.bin
9853cb57b29850674483776417734992ddb6f191f4c91b67d1f6e03445f2ae89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5073 8164 bytes

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