Malicious PDF — malware analysis report

Static analysis result for SHA-256 43ce25256f9e63bf…

MALICIOUS

PDF

36.7 KB Authoring application: OpenOffice Draw
MD5: 7f103f0700757eb1fe8ab36b2f28ac7c SHA-1: f4ee6d8c37b7b17559dc04015a7b43c257137bb3 SHA-256: 43ce25256f9e63bff00da0d9a981ec5f96f03062664bf3cadec81c2301d91f43
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'SE_URGENCY_LURE' heuristic further indicate a phishing or redirection attempt. The document body, though heavily corrupted, contains text related to a thank you letter after an interview, suggesting a social engineering pretext.

Heuristics 4

  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://mahmoudawad.net/uploads/1/3/0/7/130775704/5011523.pdf
    • http://dogtrainingmelbourne.melbourne/uploads/1/3/0/5/130550736/xepukopurofunati.pdf
    • http://dearbestie.com/uploads/1/3/0/8/130814083/961206.pdf
    • http://www.sapphiresandpearls.net/uploads/1/3/0/7/130740060/mebinejibuwejib_wofukupa_jatujo.pdf
    • http://junia-and-colin.com/uploads/1/3/0/4/130490808/kopobuzawi.pdf
    • http://mta-sts.infomalkocin.pl/uploads/1/3/0/2/130272414/puruf_votil.pdf
    • http://rollershadeiq.com/uploads/1/3/0/4/130476778/9361682.pdf
    • http://worldofgreatstuff.com/uploads/1/3/0/8/130874059/1644275.pdf
    • http://www.thesocialjusticewarrior.org/uploads/1/3/0/8/130874104/dibomisuditovin_luxabununorifom.pdf
    • http://exquisiteleatherdye.com/uploads/1/3/0/4/130489175/7031570.pdf
    • http://www.commonsensevoterguide.com/uploads/1/3/0/2/130287493/kamujag.pdf
    • http://host14.carmichaelnl.com/uploads/1/3/0/7/130739933/130739933.html#sample+thank+you+letter+after+accounting+interview+via+email
    • http://dogtrainingmelbourne.melbourne/uploads/1/3/0/5/130550736/xepuko

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037c1.bin
48a1a07c7c667494d7ea3d616bebb7885f757a6566a08e62e5a70a08ae017026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37C1 8132 bytes

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