Malicious PDF — malware analysis report

Static analysis result for SHA-256 27dd964ce8a5044b…

MALICIOUS

PDF

49.2 KB Authoring application: Inkscape
MD5: 74f762d4a267ece4e78c02e6fc4b1514 SHA-1: 48d4522c43aeefb68c569764910098f38324298e SHA-256: 27dd964ce8a5044b41a8deac226176836f0db990769d10a23d7c7d95b8014c95
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The document body mentions 'Samsung file manager apk mirror', suggesting a lure to download potentially malicious software. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malware distribution intent.

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://cfirthwssu.com/uploads/1/3/0/6/130604646/0cc99adec3e9.pdf
    • http://michellecortese.com/uploads/1/3/0/4/130475955/lemaro-jubukugazodaz-nugufelidenuko.pdf
    • http://reeeeeeeee.com/uploads/1/3/0/5/130543369/2c8d7a43b.pdf
    • http://staceymbrown.com/uploads/1/3/0/6/130620441/afdcf7e.pdf
    • http://arkansaspropertymaintenance.com/uploads/1/3/0/5/130548070/2233137.pdf
    • http://acouturelife.com/uploads/1/3/0/6/130639998/130639998.html#samsung+file+manager+apk+mirror

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010e5.bin
ca79dc96f9c97a838fd730fecc739760aae6e6d67cb25a24f5da0fa0170d4e13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5 8844 bytes
font_01_sfnt_off00006d6e.bin
eaa4dde51fd04d4db8dc223d97e5e1aeb2070941b7c144db1acc557f645d9ab7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6E 4184 bytes
font_02_sfnt_off000079fa.bin
d58f918f81360adcbf5e84eb15cfbb299aa41fbe10adbeb79207854ba90ae537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79FA 16172 bytes

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