Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fd7db8fa654691…

MALICIOUS

PDF

53.4 KB Authoring application: Nitro PDF
MD5: 7488bb48230079a3f4351c38e1864d1b SHA-1: 08a62364932b32222591f9c3b661dc3cd16dd674 SHA-256: e7fd7db8fa654691d5994443e90e4dc87c80bc3e1cacc459e4de350e14a9771a
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique commonly used for phishing or distributing further malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

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://mail.benmusic.org/uploads/1/3/0/7/130776055/6e59dc62ff.pdf
    • http://ellipseatlantic.com/uploads/1/3/0/2/130273571/e168ceb8.pdf
    • http://sdvarietyoutlet.com/uploads/1/3/0/3/130313196/vakuzovotepofe-mutowiledagaja.pdf
    • http://www.elizabethwilcome.com/uploads/1/3/0/6/130604860/wabovopogunofaj.pdf
    • http://bananababiesbrand.com/uploads/1/3/0/2/130273978/tunuxirijel.pdf
    • http://homevaluecolorado.info/uploads/1/3/0/6/130639275/vemabi.pdf
    • http://mrsbhatt.com/uploads/1/3/0/7/130776714/becc4b30e1.pdf
    • http://5425ameliaearhartdr.com/uploads/1/3/0/4/130478663/punifoponolidizati.pdf
    • http://johnchristianshankland.com/uploads/1/3/0/5/130551957/2556718.pdf
    • http://www.maurosiso.com/uploads/1/3/0/6/130639344/cb334a7b0e.pdf
    • http://cetefub.store/uploads/1/3/0/6/130639085/6189706.pdf
    • http://maisonbouche.net/uploads/1/3/0/4/130483479/miwofimozagetu-gimipaluz-todewu-pojuxo.pdf
    • http://digitaldocmd.com/uploads/1/3/0/4/130435561/130435561.html#acute+myeloid+leukemia+eln+guidelines

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000564e.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x564E 16036 bytes
font_01_sfnt_off00006a67.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67 2600 bytes
font_02_sfnt_off000076a8.bin
3ab709f2b86162a049f2c753950dcd7670f1a57b75b184470d5b5bcb95f30b26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A8 8972 bytes

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