Malicious PDF — malware analysis report

Static analysis result for SHA-256 506383174a6e2b9d…

MALICIOUS

PDF

79.6 KB Authoring application: Serif PagePlus
MD5: 1e43d825b16ce2ec317ab1148d0652f1 SHA-1: 768921db8b1174527acd542eb776dd9b3ab7165f SHA-256: 506383174a6e2b9d75ebd4fbcec2609a9eebb92de6cdc6782e6267cd1f1d9672
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO-based malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://cforcinema.org/uploads/1/3/0/5/130588698/ecbb60d.pdf
    • http://metoomvntinfo.com/uploads/1/3/0/2/130271078/vizoj-rodubefokit-firunukomaxadi.pdf
    • http://affinityhorseracing.com/uploads/1/3/0/3/130324030/lobilu-xujewesu-fazak.pdf
    • http://nicolasandysmillinery.com/uploads/1/3/0/6/130620484/wewixewe.pdf
    • http://strategicanswers.com/uploads/1/3/0/5/130551374/kugizefekesuwixa.pdf
    • http://nursisociety.org/uploads/1/3/0/6/130639310/serulofunuti.pdf
    • http://sidforeigner.com/uploads/1/3/0/6/130639563/joxuvosid.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/5/130551585/fe87523b3440b.pdf
    • http://kulshanclayworks.com/uploads/1/3/0/7/130775047/ea7b3aee2598.pdf
    • http://thezoobots.com/uploads/1/3/0/4/130488736/zizodek.pdf
    • http://danelyah.com/uploads/1/3/0/4/130477663/rufigokufapi_wobedaxeze_mokiravumunusus_sugivek.pdf
    • http://christineliboon.com/uploads/1/3/0/5/130541285/gefixon.pdf
    • http://shivster.com/uploads/1/3/0/6/130639835/9147671.pdf
    • http://hurynconstruction.net/uploads/1/3/0/3/130313314/9895233.pdf
    • http://plunkettandgibson.com/uploads/1/3/0/7/130775997/nekimozil_ludikazogezab_sapajukube_xenuliwuvi.pdf
    • http://rodeorvpark.com/uploads/1/3/0/4/130488661/5051523.pdf
    • http://marcapromocionales.com/uploads/1/3/0/5/130588438/8478359.pdf
    • http://trafficlynx.com/uploads/1/3/0/2/130271078/zowora_rabuvufutukexa_nalaredu.pdf
    • http://avadhaniestate.net/uploads/1/3/0/5/130590532/dubulitusuloj.pdf
    • http://govgraph.us/uploads/1/3/0/5/130589047/73c6492.pdf
    • http://nw4.me/uploads/1/3/0/6/130620759/8923274.pdf
    • http://0ys5k.bpmtc.com/uploads/1/3/0/6/130604218/130604218.html#equation+for+acetic+acid+equilibrium

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000175f.bin
eb0ab88a5aadedc109cb45d8feb97a00274fca10eff45ccce44b59e6e0dbe3d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x175F 10240 bytes
font_01_sfnt_off0000e5d3.bin
b0f7304af41f3e091611d8a00615e9dcd59ea6e7c1f4be4543135abb1608c2d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D3 3576 bytes
font_02_sfnt_off0000f16f.bin
c2c6c4ff8a142ba84865ee60cd2efc6a15f55451efeaae05e472bb43f1222b0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF16F 16508 bytes

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