Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9b4d87e9761a212…

MALICIOUS

PDF

48.2 KB Authoring application: pdf-parser
MD5: d33dbbc9676fa1172c8fd12ead978891 SHA-1: 72797de4d44ae9d747706edffe95a87af937b974 SHA-256: b9b4d87e9761a2125d34e3ca9ef05a6ac44499ac607005a5a5a531e172c2ac72
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs, such as http://nomnomgelato.com/uploads/1/3/0/5/130540585/gojexumalapa_fawuveze_pubudazenot_voxiza.pdf, are likely used to redirect users to phishing sites or download further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://nomnomgelato.com/uploads/1/3/0/5/130540585/gojexumalapa_fawuveze_pubudazenot_voxiza.pdf
    • http://mrmojo.com.br/uploads/1/3/0/6/130604968/403676be.pdf
    • http://molim.net/uploads/1/3/0/6/130620979/kigitefefomasaf-fubef-podupo.pdf
    • https://tusimuruso.weebly.com/uploads/1/3/0/4/130488851/62d6bc.pdf
    • http://tuarbol.net/uploads/1/3/0/5/130544898/dbd66.pdf
    • http://nordcel.com/uploads/1/3/0/6/130620622/xaxegipatex_gizibutad_wujekulibojav_nutidu.pdf
    • http://disruptioneer.com/uploads/1/3/0/6/130621507/vomixisado.pdf
    • http://generationwhit.com/uploads/1/3/0/7/130739315/ribobisarobu_zikigametexa_gawofev_vavariworisoga.pdf
    • http://jej.oginsky.me/uploads/2020/01/28/5324399.pdf
    • https://bugasibekepusep.weebly.com/uploads/1/3/0/4/130488316/5810178.pdf
    • http://drainetfissures.com/uploads/1/3/0/5/130588443/5212751.pdf
    • http://sugarpie.biz/uploads/1/3/0/5/130538996/feaf48f82f.pdf
    • http://misbailes.com/uploads/1/3/0/6/130621634/130621634.html#acsm+bench+press+standards

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001348.bin
5f5d70af63789d9d2caa3e4be642c57fbeb93147a0e0cc77552d30aa249a7200		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1348 8380 bytes
font_01_sfnt_off00006d09.bin
3d52fc27d04b8b84b219df719738f768697e09c2050136bc1fe69fcddf4eca6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D09 2652 bytes
font_02_sfnt_off000075e2.bin
871f34b8148276e59303be3b209f4b6ecbcd5d18358d3e2eb4ce9c8d9b400459		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E2 16096 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.